23112111020 has 48 divisors (see below), whose sum is σ = 48918777600. Its totient is φ = 9171921600.

The previous prime is 23112111007. The next prime is 23112111023. The reversal of 23112111020 is 2011121132.

It is a junction number, because it is equal to n+sod(n) for n = 23112110986 and 23112111004.

It is not an unprimeable number, because it can be changed into a prime (23112111023) 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, 7090151 + ... + 7093409.

It is an arithmetic number, because the mean of its divisors is an integer number (1019141200).

Almost surely, 2^23112111020 is an apocalyptic number.

23112111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23112111020 is an abundant number, since it is smaller than the sum of its proper divisors (25806666580).

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

23112111020 is a wasteful number, since it uses less digits than its factorization.

23112111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958 (or 5956 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 23112111020 its reverse (2011121132), we get a palindrome (25123232152).

The spelling of 23112111020 in words is "twenty-three billion, one hundred twelve million, one hundred eleven thousand, twenty".