100321204231 has 2 divisors, whose sum is σ = 100321204232. Its totient is φ = 100321204230.

The previous prime is 100321204157. The next prime is 100321204241. The reversal of 100321204231 is 132402123001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100321204231 - 2⁷ = 100321204103 is a prime.

It is a super-2 number, since 2×100321204231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100321204199 and 100321204208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100321204241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50160602115 + 50160602116.

It is an arithmetic number, because the mean of its divisors is an integer number (50160602116).

Almost surely, 2^100321204231 is an apocalyptic number.

100321204231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100321204231 is an equidigital number, since it uses as much as digits as its factorization.

100321204231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100321204231 its reverse (132402123001), we get a palindrome (232723327232).

The spelling of 100321204231 in words is "one hundred billion, three hundred twenty-one million, two hundred four thousand, two hundred thirty-one".