231335505265 has 32 divisors (see below), whose sum is σ = 283979520000. Its totient is φ = 180868267008.

The previous prime is 231335505251. The next prime is 231335505287. The reversal of 231335505265 is 562505533132.

It is a cyclic number.

It is not a de Polignac number, because 231335505265 - 2¹³ = 231335497073 is a prime.

It is a super-2 number, since 2×231335505265² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57131961 + ... + 57136009.

It is an arithmetic number, because the mean of its divisors is an integer number (8874360000).

Almost surely, 2^231335505265 is an apocalyptic number.

It is an amenable number.

231335505265 is a deficient number, since it is larger than the sum of its proper divisors (52644014735).

231335505265 is a wasteful number, since it uses less digits than its factorization.

231335505265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569.

The product of its (nonzero) digits is 405000, while the sum is 40.

The spelling of 231335505265 in words is "two hundred thirty-one billion, three hundred thirty-five million, five hundred five thousand, two hundred sixty-five".