23231505311 has 16 divisors (see below), whose sum is σ = 26613969408. Its totient is φ = 19865023200.

The previous prime is 23231505299. The next prime is 23231505313. The reversal of 23231505311 is 11350513232.

It is a cyclic number.

It is not a de Polignac number, because 23231505311 - 2³⁰ = 22157763487 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 (23231505313) 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, 8322326 + ... + 8325116.

It is an arithmetic number, because the mean of its divisors is an integer number (1663373088).

Almost surely, 2^23231505311 is an apocalyptic number.

23231505311 is a deficient number, since it is larger than the sum of its proper divisors (3382464097).

23231505311 is a wasteful number, since it uses less digits than its factorization.

23231505311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 23231505311 in words is "twenty-three billion, two hundred thirty-one million, five hundred five thousand, three hundred eleven".