100021232231 has 2 divisors, whose sum is σ = 100021232232. Its totient is φ = 100021232230.

The previous prime is 100021232183. The next prime is 100021232263. The reversal of 100021232231 is 132232120001.

It is a strong prime.

It is an emirp because it is prime and its reverse (132232120001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100021232231 - 2⁶ = 100021232167 is a prime.

It is a super-2 number, since 2×100021232231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021232281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010616115 + 50010616116.

It is an arithmetic number, because the mean of its divisors is an integer number (50010616116).

Almost surely, 2^100021232231 is an apocalyptic number.

100021232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021232231 is an equidigital number, since it uses as much as digits as its factorization.

100021232231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100021232231 its reverse (132232120001), we get a palindrome (232253352232).

The spelling of 100021232231 in words is "one hundred billion, twenty-one million, two hundred thirty-two thousand, two hundred thirty-one".