1312022304200 has 48 divisors (see below), whose sum is σ = 3229890210180. Its totient is φ = 493937807360.

The previous prime is 1312022304199. The next prime is 1312022304223. The reversal of 1312022304200 is 24032202131.

It can be written as a sum of positive squares in 6 ways, for example, as 510793231204 + 801229072996 = 714698^2 + 895114^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 192941057 + ... + 192947856.

Almost surely, 2^{1312022304200} is an apocalyptic number.

1312022304200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312022304200 is an abundant number, since it is smaller than the sum of its proper divisors (1917867905980).

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

1312022304200 is a wasteful number, since it uses less digits than its factorization.

1312022304200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385888946 (or 385888937 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1312022304200 its reverse (24032202131), we get a palindrome (1336054506331).

The spelling of 1312022304200 in words is "one trillion, three hundred twelve billion, twenty-two million, three hundred four thousand, two hundred".