1313012032 has 14 divisors (see below), whose sum is σ = 2605508378. Its totient is φ = 656505984.

The previous prime is 1313012027. The next prime is 1313012039. The reversal of 1313012032 is 2302103131.

It can be written as a sum of positive squares in only one way, i.e., 1176215616 + 136796416 = 34296^2 + 11696^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1313011997 and 1313012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313012039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257843 + ... + 10257970.

Almost surely, 2^1313012032 is an apocalyptic number.

It is an amenable number.

1313012032 is a deficient number, since it is larger than the sum of its proper divisors (1292496346).

1313012032 is an equidigital number, since it uses as much as digits as its factorization.

1313012032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20515825 (or 20515815 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1313012032 is about 36235.5078893618. The cubic root of 1313012032 is about 1095.0221444894.

Adding to 1313012032 its reverse (2302103131), we get a palindrome (3615115163).

The spelling of 1313012032 in words is "one billion, three hundred thirteen million, twelve thousand, thirty-two".