312440104212 has 48 divisors (see below), whose sum is σ = 738662400000. Its totient is φ = 102771658080.

The previous prime is 312440104159. The next prime is 312440104259. The reversal of 312440104212 is 212401044213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645789 + ... + 1825787.

It is an arithmetic number, because the mean of its divisors is an integer number (15388800000).

Almost surely, 2^312440104212 is an apocalyptic number.

It is an amenable number.

312440104212 is an abundant number, since it is smaller than the sum of its proper divisors (426222295788).

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

312440104212 is a wasteful number, since it uses less digits than its factorization.

312440104212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181916 (or 181914 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 312440104212 its reverse (212401044213), we get a palindrome (524841148425).

The spelling of 312440104212 in words is "three hundred twelve billion, four hundred forty million, one hundred four thousand, two hundred twelve".