313121100130 has 32 divisors (see below), whose sum is σ = 564485286960. Its totient is φ = 125055847680.

The previous prime is 313121100113. The next prime is 313121100137. The reversal of 313121100130 is 31001121313.

It can be written as a sum of positive squares in 8 ways, for example, as 286330939801 + 26790160329 = 535099^2 + 163677^2 .

It is not an unprimeable number, because it can be changed into a prime (313121100137) 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 15 ways as a sum of consecutive naturals, for example, 21338436 + ... + 21353104.

Almost surely, 2^313121100130 is an apocalyptic number.

313121100130 is a deficient number, since it is larger than the sum of its proper divisors (251364186830).

313121100130 is a wasteful number, since it uses less digits than its factorization.

313121100130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17814.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 313121100130 its reverse (31001121313), we get a palindrome (344122221443).

The spelling of 313121100130 in words is "three hundred thirteen billion, one hundred twenty-one million, one hundred thousand, one hundred thirty".