1312020032 has 14 divisors (see below), whose sum is σ = 2603539878. Its totient is φ = 656009984.

The previous prime is 1312020023. The next prime is 1312020043. The reversal of 1312020032 is 2300202131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1277633536 + 34386496 = 35744^2 + 5864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312019989 and 1312020016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10250093 + ... + 10250220.

Almost surely, 2^1312020032 is an apocalyptic number.

It is an amenable number.

1312020032 is a deficient number, since it is larger than the sum of its proper divisors (1291519846).

1312020032 is an equidigital number, since it uses as much as digits as its factorization.

1312020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20500325 (or 20500315 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1312020032 is about 36221.8170720355. The cubic root of 1312020032 is about 1094.7463065386.

Adding to 1312020032 its reverse (2300202131), we get a palindrome (3612222163).

The spelling of 1312020032 in words is "one billion, three hundred twelve million, twenty thousand, thirty-two".