231545053097 has 16 divisors (see below), whose sum is σ = 246577063824. Its totient is φ = 216670464000.

The previous prime is 231545053057. The next prime is 231545053099. The reversal of 231545053097 is 790350545132.

It can be written as a sum of positive squares in 8 ways, for example, as 87846439321 + 143698613776 = 296389^2 + 379076^2 .

It is a cyclic number.

It is not a de Polignac number, because 231545053097 - 2¹⁰ = 231545052073 is a prime.

It is a super-2 number, since 2×231545053097² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231545053099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23814197 + ... + 23823917.

It is an arithmetic number, because the mean of its divisors is an integer number (15411066489).

Almost surely, 2^231545053097 is an apocalyptic number.

It is an amenable number.

231545053097 is a deficient number, since it is larger than the sum of its proper divisors (15032010727).

231545053097 is a wasteful number, since it uses less digits than its factorization.

231545053097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17660.

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 231545053097 in words is "two hundred thirty-one billion, five hundred forty-five million, fifty-three thousand, ninety-seven".