100312003223 has 4 divisors (see below), whose sum is σ = 105591582360. Its totient is φ = 95032424088.

The previous prime is 100312003193. The next prime is 100312003291. The reversal of 100312003223 is 322300213001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100312003223 is a prime.

It is a super-2 number, since 2×100312003223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312003423) 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, 2639789540 + ... + 2639789577.

It is an arithmetic number, because the mean of its divisors is an integer number (26397895590).

Almost surely, 2^100312003223 is an apocalyptic number.

100312003223 is a deficient number, since it is larger than the sum of its proper divisors (5279579137).

100312003223 is an equidigital number, since it uses as much as digits as its factorization.

100312003223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279579136.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 100312003223 its reverse (322300213001), we get a palindrome (422612216224).

The spelling of 100312003223 in words is "one hundred billion, three hundred twelve million, three thousand, two hundred twenty-three".