31503352130 has 32 divisors (see below), whose sum is σ = 56915654400. Its totient is φ = 12554825152.

The previous prime is 31503352129. The next prime is 31503352147. The reversal of 31503352130 is 3125330513.

It is a super-2 number, since 2×31503352130² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31503352130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4731884 + ... + 4738536.

It is an arithmetic number, because the mean of its divisors is an integer number (1778614200).

Almost surely, 2^31503352130 is an apocalyptic number.

31503352130 is a deficient number, since it is larger than the sum of its proper divisors (25412302270).

31503352130 is a wasteful number, since it uses less digits than its factorization.

31503352130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338.

The product of its (nonzero) digits is 4050, while the sum is 26.

Adding to 31503352130 its reverse (3125330513), we get a palindrome (34628682643).

The spelling of 31503352130 in words is "thirty-one billion, five hundred three million, three hundred fifty-two thousand, one hundred thirty".