31144234005 has 48 divisors (see below), whose sum is σ = 57847608000. Its totient is φ = 15444801024.

The previous prime is 31144233977. The next prime is 31144234027. The reversal of 31144234005 is 50043244113.

It is a happy number.

31144234005 is a `hidden beast` number, since 311 + 4 + 4 + 2 + 340 + 0 + 5 = 666.

It is not a de Polignac number, because 31144234005 - 2⁶ = 31144233941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31144234005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181755 + ... + 308744.

It is an arithmetic number, because the mean of its divisors is an integer number (1205158500).

Almost surely, 2^31144234005 is an apocalyptic number.

It is an amenable number.

31144234005 is a deficient number, since it is larger than the sum of its proper divisors (26703373995).

31144234005 is a wasteful number, since it uses less digits than its factorization.

31144234005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490610 (or 490607 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 31144234005 its reverse (50043244113), we get a palindrome (81187478118).

The spelling of 31144234005 in words is "thirty-one billion, one hundred forty-four million, two hundred thirty-four thousand, five".