1231032012012 has 72 divisors (see below), whose sum is σ = 3395167727952. Its totient is φ = 372984652800.

The previous prime is 1231032011981. The next prime is 1231032012047. The reversal of 1231032012012 is 2102102301321.

1231032012012 is a `hidden beast` number, since 1 + 2 + 310 + 320 + 1 + 20 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2481828 + ... + 2936244.

Almost surely, 2^{1231032012012} is an apocalyptic number.

1231032012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231032012012 is an abundant number, since it is smaller than the sum of its proper divisors (2164135715940).

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

1231032012012 is a wasteful number, since it uses less digits than its factorization.

1231032012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461279 (or 461274 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1231032012012 its reverse (2102102301321), we get a palindrome (3333134313333).

The spelling of 1231032012012 in words is "one trillion, two hundred thirty-one billion, thirty-two million, twelve thousand, twelve".