31054012872 has 32 divisors (see below), whose sum is σ = 77750429280. Its totient is φ = 10335951360.

The previous prime is 31054012867. The next prime is 31054012933. The reversal of 31054012872 is 27821045013.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 945154 + ... + 977457.

It is an arithmetic number, because the mean of its divisors is an integer number (2429700915).

Almost surely, 2^31054012872 is an apocalyptic number.

It is an amenable number.

31054012872 is an abundant number, since it is smaller than the sum of its proper divisors (46696416408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31054012872 is a wasteful number, since it uses less digits than its factorization.

31054012872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923293 (or 1923289 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 31054012872 its reverse (27821045013), we get a palindrome (58875057885).

The spelling of 31054012872 in words is "thirty-one billion, fifty-four million, twelve thousand, eight hundred seventy-two".