31244000125 has 16 divisors (see below), whose sum is σ = 41991938352. Its totient is φ = 23072491200.

The previous prime is 31244000113. The next prime is 31244000189. The reversal of 31244000125 is 52100044213.

It can be written as a sum of positive squares in 8 ways, for example, as 11897137476 + 19346862649 = 109074^2 + 139093^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31244000125 is a prime.

It is a super-2 number, since 2×31244000125² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31244000096 and 31244000105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9611914 + ... + 9615163.

It is an arithmetic number, because the mean of its divisors is an integer number (2624496147).

Almost surely, 2^31244000125 is an apocalyptic number.

It is an amenable number.

31244000125 is a deficient number, since it is larger than the sum of its proper divisors (10747938227).

31244000125 is a wasteful number, since it uses less digits than its factorization.

31244000125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19227105 (or 19227095 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 31244000125 its reverse (52100044213), we get a palindrome (83344044338).

The spelling of 31244000125 in words is "thirty-one billion, two hundred forty-four million, one hundred twenty-five", and thus it is an aban number.