23131022211 has 48 divisors (see below), whose sum is σ = 36697070592. Its totient is φ = 13923662400.

The previous prime is 23131022203. The next prime is 23131022219. The reversal of 23131022211 is 11222013132.

It is an interprime number because it is at equal distance from previous prime (23131022203) and next prime (23131022219).

It is not a de Polignac number, because 23131022211 - 2³ = 23131022203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23131022219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12428421 + ... + 12430281.

It is an arithmetic number, because the mean of its divisors is an integer number (764522304).

Almost surely, 2^23131022211 is an apocalyptic number.

23131022211 is a deficient number, since it is larger than the sum of its proper divisors (13566048381).

23131022211 is a wasteful number, since it uses less digits than its factorization.

23131022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664 (or 2661 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23131022211 its reverse (11222013132), we get a palindrome (34353035343).

The spelling of 23131022211 in words is "twenty-three billion, one hundred thirty-one million, twenty-two thousand, two hundred eleven".