31201304044 has 24 divisors (see below), whose sum is σ = 56731827600. Its totient is φ = 14996909760.

The previous prime is 31201304041. The next prime is 31201304047. The reversal of 31201304044 is 44040310213.

It is an interprime number because it is at equal distance from previous prime (31201304041) and next prime (31201304047).

It is a super-2 number, since 2×31201304044² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31201304041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560722 + ... + 613849.

It is an arithmetic number, because the mean of its divisors is an integer number (2363826150).

Almost surely, 2^31201304044 is an apocalyptic number.

It is an amenable number.

31201304044 is a deficient number, since it is larger than the sum of its proper divisors (25530523556).

31201304044 is a wasteful number, since it uses less digits than its factorization.

31201304044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174833 (or 1174831 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31201304044 its reverse (44040310213), we get a palindrome (75241614257).

The spelling of 31201304044 in words is "thirty-one billion, two hundred one million, three hundred four thousand, forty-four".