31001111048 has 16 divisors (see below), whose sum is σ = 58147643580. Its totient is φ = 15495072768.

The previous prime is 31001111047. The next prime is 31001111069. The reversal of 31001111048 is 84011110013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28156168804 + 2844942244 = 167798^2 + 53338^2 .

It is a super-2 number, since 2×31001111048² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31001111047) 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 3 ways as a sum of consecutive naturals, for example, 661265 + ... + 706592.

Almost surely, 2^31001111048 is an apocalyptic number.

It is an amenable number.

31001111048 is a deficient number, since it is larger than the sum of its proper divisors (27146532532).

31001111048 is a wasteful number, since it uses less digits than its factorization.

31001111048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370696 (or 1370692 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

The spelling of 31001111048 in words is "thirty-one billion, one million, one hundred eleven thousand, forty-eight".