1312012042 has 32 divisors (see below), whose sum is σ = 2181380544. Its totient is φ = 586857600.

The previous prime is 1312012021. The next prime is 1312012063. The reversal of 1312012042 is 2402102131.

It is an interprime number because it is at equal distance from previous prime (1312012021) and next prime (1312012063).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511828 + ... + 514384.

It is an arithmetic number, because the mean of its divisors is an integer number (68168142).

Almost surely, 2^1312012042 is an apocalyptic number.

1312012042 is a deficient number, since it is larger than the sum of its proper divisors (869368502).

1312012042 is a wasteful number, since it uses less digits than its factorization.

1312012042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1312012042 is about 36221.7067792229. The cubic root of 1312012042 is about 1094.7440842553.

Adding to 1312012042 its reverse (2402102131), we get a palindrome (3714114173).

The spelling of 1312012042 in words is "one billion, three hundred twelve million, twelve thousand, forty-two".