3121535325 has 24 divisors (see below), whose sum is σ = 5464525248. Its totient is φ = 1566887680.

The previous prime is 3121535309. The next prime is 3121535353. The reversal of 3121535325 is 5235351213.

It is not a de Polignac number, because 3121535325 - 2⁴ = 3121535309 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3121535292 and 3121535301.

It is a congruent number.

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, 1222857 + ... + 1225406.

It is an arithmetic number, because the mean of its divisors is an integer number (227688552).

Almost surely, 2^3121535325 is an apocalyptic number.

It is an amenable number.

3121535325 is a deficient number, since it is larger than the sum of its proper divisors (2342989923).

3121535325 is a wasteful number, since it uses less digits than its factorization.

3121535325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448293 (or 2448288 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 3121535325 is about 55870.7018481064. The cubic root of 3121535325 is about 1461.4683615093.

Adding to 3121535325 its reverse (5235351213), we get a palindrome (8356886538).

The spelling of 3121535325 in words is "three billion, one hundred twenty-one million, five hundred thirty-five thousand, three hundred twenty-five".