1312103011512 has 32 divisors (see below), whose sum is σ = 3280299642000. Its totient is φ = 437362055424.

The previous prime is 1312103011511. The next prime is 1312103011553. The reversal of 1312103011512 is 2151103012131.

It is a super-2 number, since 2×1312103011512² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312103011511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835364 + ... + 2448012.

Almost surely, 2^{1312103011512} is an apocalyptic number.

1312103011512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312103011512 is an abundant number, since it is smaller than the sum of its proper divisors (1968196630488).

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

1312103011512 is a wasteful number, since it uses less digits than its factorization.

1312103011512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701895 (or 701891 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 1312103011512 its reverse (2151103012131), we get a palindrome (3463206023643).

The spelling of 1312103011512 in words is "one trillion, three hundred twelve billion, one hundred three million, eleven thousand, five hundred twelve".