31001401404 has 96 divisors (see below), whose sum is σ = 80824128000. Its totient is φ = 10276098048.

The previous prime is 31001401367. The next prime is 31001401429. The reversal of 31001401404 is 40410410013.

It is a super-2 number, since 2×31001401404² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23503057 + ... + 23504375.

It is an arithmetic number, because the mean of its divisors is an integer number (841918000).

Almost surely, 2^31001401404 is an apocalyptic number.

It is an amenable number.

31001401404 is an abundant number, since it is smaller than the sum of its proper divisors (49822726596).

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

31001401404 is a wasteful number, since it uses less digits than its factorization.

31001401404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31001401404 its reverse (40410410013), we get a palindrome (71411811417).

The spelling of 31001401404 in words is "thirty-one billion, one million, four hundred one thousand, four hundred four".