100223031 has 16 divisors (see below), whose sum is σ = 138951680. Its totient is φ = 64186560.

The previous prime is 100223027. The next prime is 100223033. The reversal of 100223031 is 130322001.

It is a happy number.

It is not a de Polignac number, because 100223031 - 2² = 100223027 is a prime.

It is a super-2 number, since 2×100223031² = 20089311885653922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100222998 and 100223016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100223033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9051 + ... + 16803.

It is an arithmetic number, because the mean of its divisors is an integer number (8684480).

Almost surely, 2^100223031 is an apocalyptic number.

100223031 is a deficient number, since it is larger than the sum of its proper divisors (38728649).

100223031 is a wasteful number, since it uses less digits than its factorization.

100223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7926.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100223031 is about 10011.1453390708. The cubic root of 100223031 is about 464.5036998720.

Adding to 100223031 its reverse (130322001), we get a palindrome (230545032).

The spelling of 100223031 in words is "one hundred million, two hundred twenty-three thousand, thirty-one".