31030144025 has 12 divisors (see below), whose sum is σ = 40502504400. Its totient is φ = 23517582480.

The previous prime is 31030144009. The next prime is 31030144027. The reversal of 31030144025 is 52044103013.

It is not a de Polignac number, because 31030144025 - 2⁴ = 31030144009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31030144027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32662835 + ... + 32663784.

It is an arithmetic number, because the mean of its divisors is an integer number (3375208700).

Almost surely, 2^31030144025 is an apocalyptic number.

It is an amenable number.

31030144025 is a deficient number, since it is larger than the sum of its proper divisors (9472360375).

31030144025 is a wasteful number, since it uses less digits than its factorization.

31030144025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65326648 (or 65326643 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 31030144025 its reverse (52044103013), we get a palindrome (83074247038).

The spelling of 31030144025 in words is "thirty-one billion, thirty million, one hundred forty-four thousand, twenty-five".