100223012131 has 4 divisors (see below), whose sum is σ = 109334195064. Its totient is φ = 91111829200.

The previous prime is 100223012129. The next prime is 100223012147. The reversal of 100223012131 is 131210322001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131210322001 = 11 ⋅11928211091.

It is a cyclic number.

It is not a de Polignac number, because 100223012131 - 2¹ = 100223012129 is a prime.

It is a super-2 number, since 2×100223012131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100223018131) 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 3 ways as a sum of consecutive naturals, for example, 4555591450 + ... + 4555591471.

It is an arithmetic number, because the mean of its divisors is an integer number (27333548766).

Almost surely, 2^100223012131 is an apocalyptic number.

100223012131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100223012131 is a deficient number, since it is larger than the sum of its proper divisors (9111182933).

100223012131 is an equidigital number, since it uses as much as digits as its factorization.

100223012131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111182932.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100223012131 its reverse (131210322001), we get a palindrome (231433334132).

The spelling of 100223012131 in words is "one hundred billion, two hundred twenty-three million, twelve thousand, one hundred thirty-one".