231545053201 has 36 divisors (see below), whose sum is σ = 296157799476. Its totient is φ = 180365465280.

The previous prime is 231545053189. The next prime is 231545053213. The reversal of 231545053201 is 102350545132.

It is an interprime number because it is at equal distance from previous prime (231545053189) and next prime (231545053213).

It can be written as a sum of positive squares in 2 ways, for example, as 61207254801 + 170337798400 = 247401^2 + 412720^2 .

It is a de Polignac number, because none of the positive numbers 2^k-231545053201 is a prime.

It is a super-2 number, since 2×231545053201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231545053261) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29480991 + ... + 29488843.

It is an arithmetic number, because the mean of its divisors is an integer number (8226605541).

Almost surely, 2^231545053201 is an apocalyptic number.

It is an amenable number.

231545053201 is a deficient number, since it is larger than the sum of its proper divisors (64612746275).

231545053201 is a wasteful number, since it uses less digits than its factorization.

231545053201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12862 (or 12844 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 231545053201 its reverse (102350545132), we get a palindrome (333895598333).

The spelling of 231545053201 in words is "two hundred thirty-one billion, five hundred forty-five million, fifty-three thousand, two hundred one".