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231313032201121 = 13120587147555791
BaseRepresentation
bin110100100110000011000011…
…000111011100001110100001
31010100000022100221001200101021
4310212003003013130032201
5220304313042220413441
62135543423501405441
766502546400410033
oct6446030307341641
91110008327050337
10231313032201121
11677813403a5142
1221b3a022569881
139c0b957760070
1441198792a7c53
151bb1eb1e513d1
hexd260c31dc3a1

231313032201121 has 8 divisors (see below), whose sum is σ = 249108409839744. Its totient is φ = 213517949915280.

The previous prime is 231313032201089. The next prime is 231313032201149. The reversal of 231313032201121 is 121102230313132.

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 231313032201121 - 25 = 231313032201089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231313032201151) 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, 72210265 + ... + 75345526.

It is an arithmetic number, because the mean of its divisors is an integer number (31138551229968).

Almost surely, 2231313032201121 is an apocalyptic number.

It is an amenable number.

231313032201121 is a deficient number, since it is larger than the sum of its proper divisors (17795377638623).

231313032201121 is a wasteful number, since it uses less digits than its factorization.

231313032201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147676391.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 231313032201121 its reverse (121102230313132), we get a palindrome (352415262514253).

The spelling of 231313032201121 in words is "two hundred thirty-one trillion, three hundred thirteen billion, thirty-two million, two hundred one thousand, one hundred twenty-one".

Divisors: 1 13 120587 1567631 147555791 1918225283 17793310169317 231313032201121