1312140044 has 6 divisors (see below), whose sum is σ = 2296245084. Its totient is φ = 656070020.

The previous prime is 1312140043. The next prime is 1312140047. The reversal of 1312140044 is 4400412131.

It is a super-2 number, since 2×1312140044² = 3443422990136643872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312139998 and 1312140025.

It is not an unprimeable number, because it can be changed into a prime (1312140043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164017502 + ... + 164017509.

It is an arithmetic number, because the mean of its divisors is an integer number (382707514).

Almost surely, 2^1312140044 is an apocalyptic number.

It is an amenable number.

1312140044 is a deficient number, since it is larger than the sum of its proper divisors (984105040).

1312140044 is a wasteful number, since it uses less digits than its factorization.

1312140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328035015 (or 328035013 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1312140044 is about 36223.4736600454. The cubic root of 1312140044 is about 1094.7796847607.

Adding to 1312140044 its reverse (4400412131), we get a palindrome (5712552175).

The spelling of 1312140044 in words is "one billion, three hundred twelve million, one hundred forty thousand, forty-four".