1312011442 has 32 divisors (see below), whose sum is σ = 2314376064. Its totient is φ = 546134400.

The previous prime is 1312011401. The next prime is 1312011443. The reversal of 1312011442 is 2441102131.

It is not an unprimeable number, because it can be changed into a prime (1312011443) 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, 102942 + ... + 114982.

It is an arithmetic number, because the mean of its divisors is an integer number (72324252).

Almost surely, 2^1312011442 is an apocalyptic number.

1312011442 is a deficient number, since it is larger than the sum of its proper divisors (1002364622).

1312011442 is a wasteful number, since it uses less digits than its factorization.

1312011442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1312011442 is about 36221.6984968955. The cubic root of 1312011442 is about 1094.7439173751.

Adding to 1312011442 its reverse (2441102131), we get a palindrome (3753113573).

The spelling of 1312011442 in words is "one billion, three hundred twelve million, eleven thousand, four hundred forty-two".