31130305402325 has 12 divisors (see below), whose sum is σ = 39846790915968. Its totient is φ = 24100881601200.

The previous prime is 31130305402321. The next prime is 31130305402337. The reversal of 31130305402325 is 52320450303113.

It is not a de Polignac number, because 31130305402325 - 2² = 31130305402321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31130305402291 and 31130305402300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130305402321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20084067227 + ... + 20084068776.

It is an arithmetic number, because the mean of its divisors is an integer number (3320565909664).

Almost surely, 2^{31130305402325} is an apocalyptic number.

It is an amenable number.

31130305402325 is a deficient number, since it is larger than the sum of its proper divisors (8716485513643).

31130305402325 is a wasteful number, since it uses less digits than its factorization.

31130305402325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40168136044 (or 40168136039 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 31130305402325 its reverse (52320450303113), we get a palindrome (83450755705438).

The spelling of 31130305402325 in words is "thirty-one trillion, one hundred thirty billion, three hundred five million, four hundred two thousand, three hundred twenty-five".