23231962561 has 16 divisors (see below), whose sum is σ = 24672307968. Its totient is φ = 21799929600.

The previous prime is 23231962541. The next prime is 23231962591. The reversal of 23231962561 is 16526913232.

It is not a de Polignac number, because 23231962561 - 2⁹ = 23231962049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231962541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12827346 + ... + 12829156.

It is an arithmetic number, because the mean of its divisors is an integer number (1542019248).

Almost surely, 2^23231962561 is an apocalyptic number.

It is an amenable number.

23231962561 is a deficient number, since it is larger than the sum of its proper divisors (1440345407).

23231962561 is a wasteful number, since it uses less digits than its factorization.

23231962561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672.

The product of its digits is 116640, while the sum is 40.

The spelling of 23231962561 in words is "twenty-three billion, two hundred thirty-one million, nine hundred sixty-two thousand, five hundred sixty-one".