231255771101 has 16 divisors (see below), whose sum is σ = 250910699760. Its totient is φ = 212276613120.

The previous prime is 231255771079. The next prime is 231255771113. The reversal of 231255771101 is 101177552132.

It can be written as a sum of positive squares in 8 ways, for example, as 1306750201 + 229949020900 = 36149^2 + 479530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231255771101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231255771121) 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, 2219195 + ... + 2321063.

It is an arithmetic number, because the mean of its divisors is an integer number (15681918735).

Almost surely, 2^231255771101 is an apocalyptic number.

It is an amenable number.

231255771101 is a deficient number, since it is larger than the sum of its proper divisors (19654928659).

231255771101 is a wasteful number, since it uses less digits than its factorization.

231255771101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105184.

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 231255771101 in words is "two hundred thirty-one billion, two hundred fifty-five million, seven hundred seventy-one thousand, one hundred one".