1312119993 has 64 divisors (see below), whose sum is σ = 2057529600. Its totient is φ = 738017280.

The previous prime is 1312119971. The next prime is 1312119997. The reversal of 1312119993 is 3999112131.

It is not a de Polignac number, because 1312119993 - 2⁵ = 1312119961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312119997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1488913 + ... + 1489793.

It is an arithmetic number, because the mean of its divisors is an integer number (32148900).

Almost surely, 2^1312119993 is an apocalyptic number.

It is an amenable number.

1312119993 is a deficient number, since it is larger than the sum of its proper divisors (745409607).

1312119993 is a wasteful number, since it uses less digits than its factorization.

1312119993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its digits is 13122, while the sum is 39.

The square root of 1312119993 is about 36223.1968909427. The cubic root of 1312119993 is about 1094.7741082373.

The spelling of 1312119993 in words is "one billion, three hundred twelve million, one hundred nineteen thousand, nine hundred ninety-three".