1523311312012 has 24 divisors (see below), whose sum is σ = 3047030508704. Its totient is φ = 652760301312.

The previous prime is 1523311311959. The next prime is 1523311312063. The reversal of 1523311312012 is 2102131133251.

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, 3428733 + ... + 3847444.

Almost surely, 2^{1523311312012} is an apocalyptic number.

It is an amenable number.

1523311312012 is an abundant number, since it is smaller than the sum of its proper divisors (1523719196692).

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

1523311312012 is a wasteful number, since it uses less digits than its factorization.

1523311312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7283665 (or 7283663 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 1523311312012 its reverse (2102131133251), we get a palindrome (3625442445263).

The spelling of 1523311312012 in words is "one trillion, five hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, twelve".