100325122421 has 2 divisors, whose sum is σ = 100325122422. Its totient is φ = 100325122420.

The previous prime is 100325122397. The next prime is 100325122423. The reversal of 100325122421 is 124221523001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63801708100 + 36523414321 = 252590^2 + 191111^2 .

It is a cyclic number.

It is not a de Polignac number, because 100325122421 - 2³⁰ = 99251380597 is a prime.

Together with 100325122423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100325122423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50162561210 + 50162561211.

It is an arithmetic number, because the mean of its divisors is an integer number (50162561211).

Almost surely, 2^100325122421 is an apocalyptic number.

It is an amenable number.

100325122421 is a deficient number, since it is larger than the sum of its proper divisors (1).

100325122421 is an equidigital number, since it uses as much as digits as its factorization.

100325122421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 100325122421 its reverse (124221523001), we get a palindrome (224546645422).

The spelling of 100325122421 in words is "one hundred billion, three hundred twenty-five million, one hundred twenty-two thousand, four hundred twenty-one".