31230022203 has 16 divisors (see below), whose sum is σ = 46271934240. Its totient is φ = 20817659232.

The previous prime is 31230022199. The next prime is 31230022217. The reversal of 31230022203 is 30222003213.

It is a happy number.

It is not a de Polignac number, because 31230022203 - 2² = 31230022199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31230022283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196725 + ... + 318057.

It is an arithmetic number, because the mean of its divisors is an integer number (2891995890).

Almost surely, 2^31230022203 is an apocalyptic number.

31230022203 is a deficient number, since it is larger than the sum of its proper divisors (15041912037).

31230022203 is a wasteful number, since it uses less digits than its factorization.

31230022203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130875 (or 130869 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31230022203 its reverse (30222003213), we get a palindrome (61452025416).

The spelling of 31230022203 in words is "thirty-one billion, two hundred thirty million, twenty-two thousand, two hundred three".