1312032231012 has 48 divisors (see below), whose sum is σ = 3223949355200. Its totient is φ = 414144161280.

The previous prime is 1312032230983. The next prime is 1312032231017. The reversal of 1312032231012 is 2101322302131.

It is a super-2 number, since 2×1312032231012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312032231012.

It is not an unprimeable number, because it can be changed into a prime (1312032231017) 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, 741337 + ... + 1781472.

Almost surely, 2^{1312032231012} is an apocalyptic number.

1312032231012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312032231012 is an abundant number, since it is smaller than the sum of its proper divisors (1911917124188).

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

1312032231012 is a wasteful number, since it uses less digits than its factorization.

1312032231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525116 (or 2525114 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312032231012 its reverse (2101322302131), we get a palindrome (3413354533143).

The spelling of 1312032231012 in words is "one trillion, three hundred twelve billion, thirty-two million, two hundred thirty-one thousand, twelve".