100420233 has 4 divisors (see below), whose sum is σ = 133893648. Its totient is φ = 66946820.

The previous prime is 100420217. The next prime is 100420261. The reversal of 100420233 is 332024001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100420233 - 2⁴ = 100420217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100420933) 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, 16736703 + ... + 16736708.

It is an arithmetic number, because the mean of its divisors is an integer number (33473412).

Almost surely, 2^100420233 is an apocalyptic number.

It is an amenable number.

100420233 is a deficient number, since it is larger than the sum of its proper divisors (33473415).

100420233 is an equidigital number, since it uses as much as digits as its factorization.

100420233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33473414.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 100420233 is about 10020.9896217889. The cubic root of 100420233 is about 464.8081576540.

Adding to 100420233 its reverse (332024001), we get a palindrome (432444234).

The spelling of 100420233 in words is "one hundred million, four hundred twenty thousand, two hundred thirty-three".