1313112020 has 24 divisors (see below), whose sum is σ = 3008220768. Its totient is φ = 477495200.

The previous prime is 1313112019. The next prime is 1313112037. The reversal of 1313112020 is 202113131.

It is a junction number, because it is equal to n+sod(n) for n = 1313111986 and 1313112004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984126 + ... + 2984565.

It is an arithmetic number, because the mean of its divisors is an integer number (125342532).

Almost surely, 2^1313112020 is an apocalyptic number.

1313112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313112020 is an abundant number, since it is smaller than the sum of its proper divisors (1695108748).

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

1313112020 is a wasteful number, since it uses less digits than its factorization.

1313112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968711 (or 5968709 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1313112020 is about 36236.8875595021. The cubic root of 1313112020 is about 1095.0499396891.

Adding to 1313112020 its reverse (202113131), we get a palindrome (1515225151).

It can be divided in two parts, 131311 and 2020, that added together give a palindrome (133331).

The spelling of 1313112020 in words is "one billion, three hundred thirteen million, one hundred twelve thousand, twenty".