1313103020 has 48 divisors (see below), whose sum is σ = 2795875488. Its totient is φ = 517977600.

The previous prime is 1313103017. The next prime is 1313103059. The reversal of 1313103020 is 203013131.

It is a super-2 number, since 2×1313103020² = 3448479082266240800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313102986 and 1313103004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570512 + ... + 572808.

It is an arithmetic number, because the mean of its divisors is an integer number (58247406).

Almost surely, 2^1313103020 is an apocalyptic number.

1313103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313103020 is an abundant number, since it is smaller than the sum of its proper divisors (1482772468).

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

1313103020 is a wasteful number, since it uses less digits than its factorization.

1313103020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1313103020 is about 36236.7633764386. The cubic root of 1313103020 is about 1095.0474378787.

Adding to 1313103020 its reverse (203013131), we get a palindrome (1516116151).

The spelling of 1313103020 in words is "one billion, three hundred thirteen million, one hundred three thousand, twenty".