1312120031030 has 16 divisors (see below), whose sum is σ = 2361833407584. Its totient is φ = 524844156480.

The previous prime is 1312120031009. The next prime is 1312120031111. The reversal of 1312120031030 is 301300212131.

It is a Curzon number.

It is a congruent number.

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, 1240250 + ... + 2040210.

It is an arithmetic number, because the mean of its divisors is an integer number (147614587974).

Almost surely, 2^{1312120031030} is an apocalyptic number.

1312120031030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312120031030 is a deficient number, since it is larger than the sum of its proper divisors (1049713376554).

1312120031030 is a wasteful number, since it uses less digits than its factorization.

1312120031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963991.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1312120031030 its reverse (301300212131), we get a palindrome (1613420243161).

The spelling of 1312120031030 in words is "one trillion, three hundred twelve billion, one hundred twenty million, thirty-one thousand, thirty".