23112012 has 48 divisors (see below), whose sum is σ = 67237632. Its totient is φ = 6002880.

The previous prime is 23112007. The next prime is 23112029. The reversal of 23112012 is 21021132.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11583 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (1400784).

Almost surely, 2^23112012 is an apocalyptic number.

23112012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23112012 is an abundant number, since it is smaller than the sum of its proper divisors (44125620).

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

23112012 is a wasteful number, since it uses less digits than its factorization.

23112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25038 (or 25036 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 23112012 is about 4807.4953978137. The cubic root of 23112012 is about 284.8476132100.

Adding to 23112012 its reverse (21021132), we get a palindrome (44133144).

It can be divided in two parts, 231120 and 12, that added together give a palindrome (231132).

The spelling of 23112012 in words is "twenty-three million, one hundred twelve thousand, twelve".