23011122012 has 12 divisors (see below), whose sum is σ = 53692618056. Its totient is φ = 7670374000.

The previous prime is 23011121993. The next prime is 23011122031. The reversal of 23011122012 is 21022111032.

It is an interprime number because it is at equal distance from previous prime (23011121993) and next prime (23011122031).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 23011121982 and 23011122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958796739 + ... + 958796762.

It is an arithmetic number, because the mean of its divisors is an integer number (4474384838).

Almost surely, 2^23011122012 is an apocalyptic number.

It is an amenable number.

23011122012 is an abundant number, since it is smaller than the sum of its proper divisors (30681496044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23011122012 is a wasteful number, since it uses less digits than its factorization.

23011122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917593508 (or 1917593506 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 23011122012 its reverse (21022111032), we get a palindrome (44033233044).

The spelling of 23011122012 in words is "twenty-three billion, eleven million, one hundred twenty-two thousand, twelve".