31122652974 has 16 divisors (see below), whose sum is σ = 71137492608. Its totient is φ = 8892186552.

The previous prime is 31122652963. The next prime is 31122652991. The reversal of 31122652974 is 47925622113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 741015547 = 31122652974 / (3 + 1 + 1 + 2 + 2 + 6 + 5 + 2 + 9 + 7 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370507732 + ... + 370507815.

It is an arithmetic number, because the mean of its divisors is an integer number (4446093288).

Almost surely, 2^31122652974 is an apocalyptic number.

31122652974 is an abundant number, since it is smaller than the sum of its proper divisors (40014839634).

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

31122652974 is a wasteful number, since it uses less digits than its factorization.

31122652974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741015559.

The product of its digits is 181440, while the sum is 42.

The spelling of 31122652974 in words is "thirty-one billion, one hundred twenty-two million, six hundred fifty-two thousand, nine hundred seventy-four".