312500000001 has 32 divisors (see below), whose sum is σ = 492658502400. Its totient is φ = 172397111040.

The previous prime is 312499999919. The next prime is 312500000027. The reversal of 312500000001 is 100000005213.

It is not a de Polignac number, because 312500000001 - 2¹⁵ = 312499967233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312500000801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8915931 + ... + 8950911.

It is an arithmetic number, because the mean of its divisors is an integer number (15395578200).

Almost surely, 2^312500000001 is an apocalyptic number.

It is an amenable number.

312500000001 is a deficient number, since it is larger than the sum of its proper divisors (180158502399).

312500000001 is a wasteful number, since it uses less digits than its factorization.

312500000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49689.

The product of its (nonzero) digits is 30, while the sum is 12.

Adding to 312500000001 its reverse (100000005213), we get a palindrome (412500005214).

The spelling of 312500000001 in words is "three hundred twelve billion, five hundred million, one", and thus it is an aban number.