100224431 has 4 divisors (see below), whose sum is σ = 102115512. Its totient is φ = 98333352.

The previous prime is 100224391. The next prime is 100224497. The reversal of 100224431 is 134422001.

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

It is a cyclic number.

It is not a de Polignac number, because 100224431 - 2²⁶ = 33115567 is a prime.

It is a super-2 number, since 2×100224431² = 20089873138547522, which 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 (100220431) 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, 945461 + ... + 945566.

It is an arithmetic number, because the mean of its divisors is an integer number (25528878).

Almost surely, 2^100224431 is an apocalyptic number.

100224431 is a deficient number, since it is larger than the sum of its proper divisors (1891081).

100224431 is an equidigital number, since it uses as much as digits as its factorization.

100224431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891080.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 100224431 is about 10011.2152608962. The cubic root of 100224431 is about 464.5058627220.

Adding to 100224431 its reverse (134422001), we get a palindrome (234646432).

The spelling of 100224431 in words is "one hundred million, two hundred twenty-four thousand, four hundred thirty-one".