100312211223 has 24 divisors (see below), whose sum is σ = 165673872000. Its totient is φ = 57293879184.

The previous prime is 100312211143. The next prime is 100312211227. The reversal of 100312211223 is 322112213001.

It is not a de Polignac number, because 100312211223 - 2²⁰ = 100311162647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100312211196 and 100312211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312211227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247053 + ... + 511526.

It is an arithmetic number, because the mean of its divisors is an integer number (6903078000).

Almost surely, 2^100312211223 is an apocalyptic number.

100312211223 is a deficient number, since it is larger than the sum of its proper divisors (65361660777).

100312211223 is a wasteful number, since it uses less digits than its factorization.

100312211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760691 (or 760688 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 100312211223 its reverse (322112213001), we get a palindrome (422424424224).

The spelling of 100312211223 in words is "one hundred billion, three hundred twelve million, two hundred eleven thousand, two hundred twenty-three".