31602003425 has 6 divisors (see below), whose sum is σ = 39186484278. Its totient is φ = 25281602720.

The previous prime is 31602003413. The next prime is 31602003439. The reversal of 31602003425 is 52430020613.

It can be written as a sum of positive squares in 3 ways, for example, as 10300017121 + 21301986304 = 101489^2 + 145952^2 .

It is not a de Polignac number, because 31602003425 - 2¹⁶ = 31601937889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31602003394 and 31602003403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632040044 + ... + 632040093.

It is an arithmetic number, because the mean of its divisors is an integer number (6531080713).

Almost surely, 2^31602003425 is an apocalyptic number.

It is an amenable number.

31602003425 is a deficient number, since it is larger than the sum of its proper divisors (7584480853).

31602003425 is a wasteful number, since it uses less digits than its factorization.

31602003425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264080147 (or 1264080142 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 31602003425 in words is "thirty-one billion, six hundred two million, three thousand, four hundred twenty-five".