1312102200 has 48 divisors (see below), whose sum is σ = 4067518680. Its totient is φ = 349893760.

The previous prime is 1312102199. The next prime is 1312102273. The reversal of 1312102200 is 22012131.

It is a super-2 number, since 2×1312102200² = 3443224366489680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 1092819 + ... + 1094018.

Almost surely, 2^1312102200 is an apocalyptic number.

1312102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312102200 is an abundant number, since it is smaller than the sum of its proper divisors (2755416480).

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

1312102200 is a wasteful number, since it uses less digits than its factorization.

1312102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186856 (or 2186847 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1312102200 is about 36222.9512878230. The cubic root of 1312102200 is about 1094.7691596543.

Adding to 1312102200 its reverse (22012131), we get a palindrome (1334114331).

The spelling of 1312102200 in words is "one billion, three hundred twelve million, one hundred two thousand, two hundred".