312100131200 has 192 divisors, whose sum is σ = 905773745520. Its totient is φ = 104760729600.

The previous prime is 312100131193. The next prime is 312100131269. The reversal of 312100131200 is 2131001213.

It is a congruent number.

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, 116582 + ... + 798618.

Almost surely, 2^312100131200 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 312100131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452886872760).

312100131200 is an abundant number, since it is smaller than the sum of its proper divisors (593673614320).

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

312100131200 is a wasteful number, since it uses less digits than its factorization.

312100131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682085 (or 682068 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 312100131200 its reverse (2131001213), we get a palindrome (314231132413).

It can be divided in two parts, 31210013 and 1200, that added together give a palindrome (31211213).

The spelling of 312100131200 in words is "three hundred twelve billion, one hundred million, one hundred thirty-one thousand, two hundred".