31244010425 has 24 divisors (see below), whose sum is σ = 38938263000. Its totient is φ = 24869191680.

The previous prime is 31244010383. The next prime is 31244010431. The reversal of 31244010425 is 52401044213.

It can be written as a sum of positive squares in 12 ways, for example, as 298978681 + 30945031744 = 17291^2 + 175912^2 .

It is not a de Polignac number, because 31244010425 - 2²² = 31239816121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31244010394 and 31244010403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6866051 + ... + 6870599.

It is an arithmetic number, because the mean of its divisors is an integer number (1622427625).

Almost surely, 2^31244010425 is an apocalyptic number.

It is an amenable number.

31244010425 is a deficient number, since it is larger than the sum of its proper divisors (7694252575).

31244010425 is a wasteful number, since it uses less digits than its factorization.

31244010425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885 (or 5880 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 31244010425 its reverse (52401044213), we get a palindrome (83645054638).

The spelling of 31244010425 in words is "thirty-one billion, two hundred forty-four million, ten thousand, four hundred twenty-five".