312430213100 has 72 divisors (see below), whose sum is σ = 694701088368. Its totient is φ = 121890355200.

The previous prime is 312430213099. The next prime is 312430213111. The reversal of 312430213100 is 1312034213.

It is a super-2 number, since 2×312430213100² (a number of 24 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 19085519 + ... + 19101881.

Almost surely, 2^312430213100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312430213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347350544184).

312430213100 is an abundant number, since it is smaller than the sum of its proper divisors (382270875268).

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

312430213100 is a wasteful number, since it uses less digits than its factorization.

312430213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21075 (or 21068 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312430213100 its reverse (1312034213), we get a palindrome (313742247313).

The spelling of 312430213100 in words is "three hundred twelve billion, four hundred thirty million, two hundred thirteen thousand, one hundred".