100131231313 has 4 divisors (see below), whose sum is σ = 100138094388. Its totient is φ = 100124368240.

The previous prime is 100131231307. The next prime is 100131231329. The reversal of 100131231313 is 313132131001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313132131001 = 887 ⋅353023823.

It can be written as a sum of positive squares in 2 ways, for example, as 3206730384 + 96924500929 = 56628^2 + 311327^2 .

It is a cyclic number.

It is not a de Polignac number, because 100131231313 - 2⁵ = 100131231281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100131231373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409606 + ... + 3438847.

It is an arithmetic number, because the mean of its divisors is an integer number (25034523597).

Almost surely, 2^100131231313 is an apocalyptic number.

It is an amenable number.

100131231313 is a deficient number, since it is larger than the sum of its proper divisors (6863075).

100131231313 is an equidigital number, since it uses as much as digits as its factorization.

100131231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863074.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 100131231313 its reverse (313132131001), we get a palindrome (413263362314).

The spelling of 100131231313 in words is "one hundred billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred thirteen".