312031240115 has 16 divisors (see below), whose sum is σ = 442684716480. Its totient is φ = 206586199680.

The previous prime is 312031240069. The next prime is 312031240121. The reversal of 312031240115 is 511042130213.

It is not a de Polignac number, because 312031240115 - 2⁸ = 312031239859 is a prime.

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, 153708956 + ... + 153710985.

It is an arithmetic number, because the mean of its divisors is an integer number (27667794780).

Almost surely, 2^312031240115 is an apocalyptic number.

312031240115 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

312031240115 is a deficient number, since it is larger than the sum of its proper divisors (130653476365).

312031240115 is a wasteful number, since it uses less digits than its factorization.

312031240115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307419982.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 312031240115 its reverse (511042130213), we get a palindrome (823073370328).

The spelling of 312031240115 in words is "three hundred twelve billion, thirty-one million, two hundred forty thousand, one hundred fifteen".