100432231 has 2 divisors, whose sum is σ = 100432232. Its totient is φ = 100432230.

The previous prime is 100432229. The next prime is 100432261. The reversal of 100432231 is 132234001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100432231 - 2¹ = 100432229 is a prime.

It is a super-2 number, since 2×100432231² = 20173266047274722, which contains 22 as substring.

Together with 100432229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100432201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50216115 + 50216116.

It is an arithmetic number, because the mean of its divisors is an integer number (50216116).

Almost surely, 2^100432231 is an apocalyptic number.

100432231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100432231 is an equidigital number, since it uses as much as digits as its factorization.

100432231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100432231 is about 10021.5882473788. The cubic root of 100432231 is about 464.8266683532.

Adding to 100432231 its reverse (132234001), we get a palindrome (232666232).

The spelling of 100432231 in words is "one hundred million, four hundred thirty-two thousand, two hundred thirty-one".