102312012 has 24 divisors (see below), whose sum is σ = 260430912. Its totient is φ = 31003600.

The previous prime is 102311999. The next prime is 102312043. The reversal of 102312012 is 210213201.

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 7 ways as a sum of consecutive naturals, for example, 387414 + ... + 387677.

It is an arithmetic number, because the mean of its divisors is an integer number (10851288).

Almost surely, 2^102312012 is an apocalyptic number.

102312012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102312012 is an abundant number, since it is smaller than the sum of its proper divisors (158118900).

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

102312012 is a wasteful number, since it uses less digits than its factorization.

102312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775109 (or 775107 counting only the distinct ones).

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

The square root of 102312012 is about 10114.9400393675. The cubic root of 102312012 is about 467.7088005112.

Adding to 102312012 its reverse (210213201), we get a palindrome (312525213).

The spelling of 102312012 in words is "one hundred two million, three hundred twelve thousand, twelve".