1313331012 has 36 divisors (see below), whose sum is σ = 3794068096. Its totient is φ = 375237360.

The previous prime is 1313331007. The next prime is 1313331023. The reversal of 1313331012 is 2101333131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2605564 + ... + 2606067.

Almost surely, 2^1313331012 is an apocalyptic number.

1313331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313331012 is an abundant number, since it is smaller than the sum of its proper divisors (2480737084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313331012 is a wasteful number, since it uses less digits than its factorization.

1313331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211648 (or 5211643 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1313331012 is about 36239.9091058463. The cubic root of 1313331012 is about 1095.1108113291.

Adding to 1313331012 its reverse (2101333131), we get a palindrome (3414664143).

The spelling of 1313331012 in words is "one billion, three hundred thirteen million, three hundred thirty-one thousand, twelve".