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231022312233011 = 13235967587933247
BaseRepresentation
bin110100100001110100010010…
…110110110001100000110011
31010021222111222011011010011222
4310201310102312301200303
5220240032143412424021
62135202103551455255
766442545155431055
oct6441642266614063
91107874864133158
10231022312233011
116767a015575192
1221ab1808b2752b
139bba40640a7b0
14410977a8338d5
151ba96493366ab
hexd21d12db1833

231022312233011 has 64 divisors (see below), whose sum is σ = 268004627251200. Its totient is φ = 197489876512896.

The previous prime is 231022312233007. The next prime is 231022312233059. The reversal of 231022312233011 is 110332213220132.

It is a cyclic number.

It is not a de Polignac number, because 231022312233011 - 22 = 231022312233007 is a prime.

It is a super-2 number, since 2×2310223122330112 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022312253011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6948649790 + ... + 6948683036.

It is an arithmetic number, because the mean of its divisors is an integer number (4187572300800).

Almost surely, 2231022312233011 is an apocalyptic number.

231022312233011 is a deficient number, since it is larger than the sum of its proper divisors (36982315018189).

231022312233011 is a wasteful number, since it uses less digits than its factorization.

231022312233011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39288.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 231022312233011 its reverse (110332213220132), we get a palindrome (341354525453143).

The spelling of 231022312233011 in words is "two hundred thirty-one trillion, twenty-two billion, three hundred twelve million, two hundred thirty-three thousand, eleven".

Divisors: 1 13 23 59 67 299 767 871 1357 1541 3953 5879 17641 20033 33247 51389 76427 90919 135217 346861 393893 432211 764681 1181947 1757821 1961573 2227549 4509193 5120609 7977803 9059539 9940853 23239687 25500449 28958137 45116179 51233627 103711439 117774007 131425391 195459113 302115931 534512801 586510327 666037151 1708530083 2540968469 3022783993 4495559599 6948666413 11532087667 13095760571 39296191909 58442274787 149917139671 170244887423 265238016341 301202493133 772649873689 3448094212433 3915632410729 10044448357957 17770947094847 231022312233011