31003204001 has 24 divisors (see below), whose sum is σ = 41414312160. Its totient is φ = 22886841600.

The previous prime is 31003203961. The next prime is 31003204123. The reversal of 31003204001 is 10040230013.

It is not a de Polignac number, because 31003204001 - 2¹⁰ = 31003202977 is a prime.

It is a super-2 number, since 2×31003204001² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31003204601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1503440 + ... + 1523921.

It is an arithmetic number, because the mean of its divisors is an integer number (1725596340).

Almost surely, 2^31003204001 is an apocalyptic number.

It is an amenable number.

31003204001 is a deficient number, since it is larger than the sum of its proper divisors (10411108159).

31003204001 is a wasteful number, since it uses less digits than its factorization.

31003204001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027405 (or 3027398 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31003204001 its reverse (10040230013), we get a palindrome (41043434014).

The spelling of 31003204001 in words is "thirty-one billion, three million, two hundred four thousand, one".