1031311325 has 12 divisors (see below), whose sum is σ = 1395083328. Its totient is φ = 750044400.

The previous prime is 1031311319. The next prime is 1031311343. The reversal of 1031311325 is 5231131301.

It is a de Polignac number, because none of the positive numbers 2^k-1031311325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031311297 and 1031311306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1874837 + ... + 1875386.

It is an arithmetic number, because the mean of its divisors is an integer number (116256944).

Almost surely, 2^1031311325 is an apocalyptic number.

It is an amenable number.

1031311325 is a deficient number, since it is larger than the sum of its proper divisors (363772003).

1031311325 is a wasteful number, since it uses less digits than its factorization.

1031311325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750244 (or 3750239 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1031311325 is about 32114.0362614231. The cubic root of 1031311325 is about 1010.3300313480.

Adding to 1031311325 its reverse (5231131301), we get a palindrome (6262442626).

The spelling of 1031311325 in words is "one billion, thirty-one million, three hundred eleven thousand, three hundred twenty-five".