31233130130 has 16 divisors (see below), whose sum is σ = 56530243224. Its totient is φ = 12424227840.

The previous prime is 31233130091. The next prime is 31233130139. The reversal of 31233130130 is 3103133213.

It can be written as a sum of positive squares in 4 ways, for example, as 25729122409 + 5504007721 = 160403^2 + 74189^2 .

It is not an unprimeable number, because it can be changed into a prime (31233130139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8626127 + ... + 8629746.

Almost surely, 2^31233130130 is an apocalyptic number.

31233130130 is a deficient number, since it is larger than the sum of its proper divisors (25297113094).

31233130130 is a wasteful number, since it uses less digits than its factorization.

31233130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17256061.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31233130130 its reverse (3103133213), we get a palindrome (34336263343).

The spelling of 31233130130 in words is "thirty-one billion, two hundred thirty-three million, one hundred thirty thousand, one hundred thirty".