31244131004 has 12 divisors (see below), whose sum is σ = 54685392384. Its totient is φ = 15619733184.

The previous prime is 31244130997. The next prime is 31244131007. The reversal of 31244131004 is 40013144213.

It is a super-2 number, since 2×31244131004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31244131007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 552764 + ... + 606659.

It is an arithmetic number, because the mean of its divisors is an integer number (4557116032).

Almost surely, 2^31244131004 is an apocalyptic number.

It is an amenable number.

31244131004 is a deficient number, since it is larger than the sum of its proper divisors (23441261380).

31244131004 is a wasteful number, since it uses less digits than its factorization.

31244131004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166164 (or 1166162 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31244131004 its reverse (40013144213), we get a palindrome (71257275217).

The spelling of 31244131004 in words is "thirty-one billion, two hundred forty-four million, one hundred thirty-one thousand, four".