1312023202200 has 72 divisors (see below), whose sum is σ = 4406211260100. Its totient is φ = 349872853440.

The previous prime is 1312023202183. The next prime is 1312023202211. The reversal of 1312023202200 is 22023202131.

1312023202200 is a `hidden beast` number, since 1 + 3 + 120 + 2 + 320 + 220 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1312023202200² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 364449090 + ... + 364452689.

Almost surely, 2^{1312023202200} is an apocalyptic number.

1312023202200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312023202200 is an abundant number, since it is smaller than the sum of its proper divisors (3094188057900).

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

1312023202200 is a wasteful number, since it uses less digits than its factorization.

1312023202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728901801 (or 728901789 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1312023202200 its reverse (22023202131), we get a palindrome (1334046404331).

The spelling of 1312023202200 in words is "one trillion, three hundred twelve billion, twenty-three million, two hundred two thousand, two hundred".