31288147107 has 16 divisors (see below), whose sum is σ = 47679648000. Its totient is φ = 17878014432.

The previous prime is 31288147103. The next prime is 31288147109. The reversal of 31288147107 is 70174188213.

It is not a de Polignac number, because 31288147107 - 2² = 31288147103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31288147103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767269 + ... + 807017.

It is an arithmetic number, because the mean of its divisors is an integer number (2979978000).

Almost surely, 2^31288147107 is an apocalyptic number.

31288147107 is a deficient number, since it is larger than the sum of its proper divisors (16391500893).

31288147107 is a wasteful number, since it uses less digits than its factorization.

31288147107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77242.

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 31288147107 in words is "thirty-one billion, two hundred eighty-eight million, one hundred forty-seven thousand, one hundred seven".