1313237100 has 72 divisors (see below), whose sum is σ = 4342444288. Its totient is φ = 300168000.

The previous prime is 1313237089. The next prime is 1313237113. The reversal of 1313237100 is 17323131.

It is a super-3 number, since 3×1313237100³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310576 + ... + 314775.

Almost surely, 2^1313237100 is an apocalyptic number.

1313237100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313237100 is an abundant number, since it is smaller than the sum of its proper divisors (3029207188).

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

1313237100 is a wasteful number, since it uses less digits than its factorization.

1313237100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625375 (or 625368 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 1313237100 is about 36238.6133840687. The cubic root of 1313237100 is about 1095.0847081109.

The spelling of 1313237100 in words is "one billion, three hundred thirteen million, two hundred thirty-seven thousand, one hundred".