312213420200 has 72 divisors (see below), whose sum is σ = 797885969790. Its totient is φ = 113532144000.

The previous prime is 312213420179. The next prime is 312213420217. The reversal of 312213420200 is 2024312213.

It can be written as a sum of positive squares in 3 ways, for example, as 257306620516 + 54906799684 = 507254^2 + 234322^2 .

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 17 ways as a sum of consecutive naturals, for example, 6426491 + ... + 6474890.

Almost surely, 2^312213420200 is an apocalyptic number.

It is an amenable number.

312213420200 is an abundant number, since it is smaller than the sum of its proper divisors (485672549590).

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

312213420200 is a wasteful number, since it uses less digits than its factorization.

312213420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12901419 (or 12901399 counting only the distinct ones).

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

Adding to 312213420200 its reverse (2024312213), we get a palindrome (314237732413).

The spelling of 312213420200 in words is "three hundred twelve billion, two hundred thirteen million, four hundred twenty thousand, two hundred".