100023121313 has 4 divisors (see below), whose sum is σ = 100024984368. Its totient is φ = 100021258260.

The previous prime is 100023121309. The next prime is 100023121337. The reversal of 100023121313 is 313121320001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100023121313 - 2² = 100023121309 is a prime.

It is a super-2 number, since 2×100023121313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100023121291 and 100023121300.

It is not an unprimeable number, because it can be changed into a prime (100023121013) 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, 848531 + ... + 959192.

It is an arithmetic number, because the mean of its divisors is an integer number (25006246092).

Almost surely, 2^100023121313 is an apocalyptic number.

It is an amenable number.

100023121313 is a deficient number, since it is larger than the sum of its proper divisors (1863055).

100023121313 is an equidigital number, since it uses as much as digits as its factorization.

100023121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863054.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100023121313 its reverse (313121320001), we get a palindrome (413144441314).

The spelling of 100023121313 in words is "one hundred billion, twenty-three million, one hundred twenty-one thousand, three hundred thirteen".