31144013304 has 32 divisors (see below), whose sum is σ = 77888832000. Its totient is φ = 10377497952.

The previous prime is 31144013291. The next prime is 31144013317. The reversal of 31144013304 is 40331044113.

It is an interprime number because it is at equal distance from previous prime (31144013291) and next prime (31144013317).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 173374 + ... + 303885.

It is an arithmetic number, because the mean of its divisors is an integer number (2434026000).

Almost surely, 2^31144013304 is an apocalyptic number.

It is an amenable number.

31144013304 is an abundant number, since it is smaller than the sum of its proper divisors (46744818696).

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

31144013304 is a wasteful number, since it uses less digits than its factorization.

31144013304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479987 (or 479983 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31144013304 its reverse (40331044113), we get a palindrome (71475057417).

The spelling of 31144013304 in words is "thirty-one billion, one hundred forty-four million, thirteen thousand, three hundred four".