31203303130 has 16 divisors (see below), whose sum is σ = 58102702920. Its totient is φ = 12050930752.

The previous prime is 31203303127. The next prime is 31203303163. The reversal of 31203303130 is 3130330213.

It can be written as a sum of positive squares in 4 ways, for example, as 30920760649 + 282542481 = 175843^2 + 16809^2 .

It is a super-2 number, since 2×31203303130² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31203303098 and 31203303107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53798509 + ... + 53799088.

Almost surely, 2^31203303130 is an apocalyptic number.

31203303130 is a deficient number, since it is larger than the sum of its proper divisors (26899399790).

31203303130 is a wasteful number, since it uses less digits than its factorization.

31203303130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107597633.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 31203303130 its reverse (3130330213), we get a palindrome (34333633343).

The spelling of 31203303130 in words is "thirty-one billion, two hundred three million, three hundred three thousand, one hundred thirty".