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231230313222311 = 1325769209911171
BaseRepresentation
bin110100100100110110000000…
…101011100101000010100111
31010022201101212002201011122102
4310210312000223211002213
5220301434140141103221
62135441423414522315
766463560501605354
oct6444660053450247
91108641762634572
10231230313222311
116774a25271a037
1221b25b9806639b
139c03c04228160
14411586d39962b
151baec6edee30b
hexd24d80ae50a7

231230313222311 has 8 divisors (see below), whose sum is σ = 249986199153264. Its totient is φ = 212612847114240.

The previous prime is 231230313222301. The next prime is 231230313222329. The reversal of 231230313222311 is 113222313032132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231230313222311 - 218 = 231230312960167 is a prime.

It is a super-2 number, since 2×2312303132223112 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230313222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34604952245 + ... + 34604958926.

It is an arithmetic number, because the mean of its divisors is an integer number (31248274894158).

Almost surely, 2231230313222311 is an apocalyptic number.

231230313222311 is a deficient number, since it is larger than the sum of its proper divisors (18755885930953).

231230313222311 is a wasteful number, since it uses less digits than its factorization.

231230313222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69209911441.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 231230313222311 its reverse (113222313032132), we get a palindrome (344452626254443).

The spelling of 231230313222311 in words is "two hundred thirty-one trillion, two hundred thirty billion, three hundred thirteen million, two hundred twenty-two thousand, three hundred eleven".

Divisors: 1 13 257 3341 69209911171 899728845223 17786947170947 231230313222311