312640401115 has 8 divisors (see below), whose sum is σ = 428763978720. Its totient is φ = 214381989312.

The previous prime is 312640401083. The next prime is 312640401119. The reversal of 312640401115 is 511104046213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312640401115 - 2⁵ = 312640401083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312640401119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4466291410 + ... + 4466291479.

It is an arithmetic number, because the mean of its divisors is an integer number (53595497340).

Almost surely, 2^312640401115 is an apocalyptic number.

312640401115 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

312640401115 is a deficient number, since it is larger than the sum of its proper divisors (116123577605).

312640401115 is an equidigital number, since it uses as much as digits as its factorization.

312640401115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8932582901.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 312640401115 its reverse (511104046213), we get a palindrome (823744447328).

The spelling of 312640401115 in words is "three hundred twelve billion, six hundred forty million, four hundred one thousand, one hundred fifteen".