31003430204 has 12 divisors (see below), whose sum is σ = 54432734664. Its totient is φ = 15451220304.

The previous prime is 31003430203. The next prime is 31003430209. The reversal of 31003430204 is 40203430013.

It is a super-2 number, since 2×31003430204² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003430203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12622319 + ... + 12624774.

It is an arithmetic number, because the mean of its divisors is an integer number (4536061222).

Almost surely, 2^31003430204 is an apocalyptic number.

It is an amenable number.

31003430204 is a deficient number, since it is larger than the sum of its proper divisors (23429304460).

31003430204 is a wasteful number, since it uses less digits than its factorization.

31003430204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25247404 (or 25247402 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31003430204 its reverse (40203430013), we get a palindrome (71206860217).

The spelling of 31003430204 in words is "thirty-one billion, three million, four hundred thirty thousand, two hundred four".