312231404140 has 12 divisors (see below), whose sum is σ = 655685948736. Its totient is φ = 124892561648.

The previous prime is 312231404119. The next prime is 312231404183. The reversal of 312231404140 is 41404132213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7805785084 + ... + 7805785123.

It is an arithmetic number, because the mean of its divisors is an integer number (54640495728).

Almost surely, 2^312231404140 is an apocalyptic number.

It is an amenable number.

312231404140 is an abundant number, since it is smaller than the sum of its proper divisors (343454544596).

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

312231404140 is a wasteful number, since it uses less digits than its factorization.

312231404140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611570216 (or 15611570214 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 312231404140 its reverse (41404132213), we get a palindrome (353635536353).

The spelling of 312231404140 in words is "three hundred twelve billion, two hundred thirty-one million, four hundred four thousand, one hundred forty".