23012551211 has 16 divisors (see below), whose sum is σ = 26257389984. Its totient is φ = 19979979264.

The previous prime is 23012551147. The next prime is 23012551229. The reversal of 23012551211 is 11215521032.

It is a cyclic number.

It is not a de Polignac number, because 23012551211 - 2⁶ = 23012551147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23012551241) 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, 320336 + ... + 385538.

It is an arithmetic number, because the mean of its divisors is an integer number (1641086874).

Almost surely, 2^23012551211 is an apocalyptic number.

23012551211 is a deficient number, since it is larger than the sum of its proper divisors (3244838773).

23012551211 is a wasteful number, since it uses less digits than its factorization.

23012551211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66830.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 23012551211 in words is "twenty-three billion, twelve million, five hundred fifty-one thousand, two hundred eleven".