31144234004 has 12 divisors (see below), whose sum is σ = 58694902644. Its totient is φ = 14374261824.

The previous prime is 31144233977. The next prime is 31144234027. The reversal of 31144234004 is 40043244113.

It can be written as a sum of positive squares in 2 ways, for example, as 13029765904 + 18114468100 = 114148^2 + 134590^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299463737 + ... + 299463840.

It is an arithmetic number, because the mean of its divisors is an integer number (4891241887).

Almost surely, 2^31144234004 is an apocalyptic number.

It is an amenable number.

31144234004 is a deficient number, since it is larger than the sum of its proper divisors (27550668640).

31144234004 is a wasteful number, since it uses less digits than its factorization.

31144234004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598927594 (or 598927592 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31144234004 its reverse (40043244113), we get a palindrome (71187478117).

The spelling of 31144234004 in words is "thirty-one billion, one hundred forty-four million, two hundred thirty-four thousand, four".