31404037104 has 120 divisors (see below), whose sum is σ = 95920860672. Its totient is φ = 9512069760.

The previous prime is 31404037087. The next prime is 31404037109. The reversal of 31404037104 is 40173040413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404037109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6249537 + ... + 6254559.

Almost surely, 2^31404037104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31404037104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47960430336).

31404037104 is an abundant number, since it is smaller than the sum of its proper divisors (64516823568).

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

31404037104 is a wasteful number, since it uses less digits than its factorization.

31404037104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8995 (or 8986 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 31404037104 its reverse (40173040413), we get a palindrome (71577077517).

The spelling of 31404037104 in words is "thirty-one billion, four hundred four million, thirty-seven thousand, one hundred four".