100124291 has 2 divisors, whose sum is σ = 100124292. Its totient is φ = 100124290.

The previous prime is 100124251. The next prime is 100124293. The reversal of 100124291 is 192421001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100124291 is a prime.

Together with 100124293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100124293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50062145 + 50062146.

It is an arithmetic number, because the mean of its divisors is an integer number (50062146).

Almost surely, 2^100124291 is an apocalyptic number.

100124291 is a deficient number, since it is larger than the sum of its proper divisors (1).

100124291 is an equidigital number, since it uses as much as digits as its factorization.

100124291 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 20.

The square root of 100124291 is about 10006.2126201675. The cubic root of 100124291 is about 464.3511063172.

Adding to 100124291 its reverse (192421001), we get a palindrome (292545292).

The spelling of 100124291 in words is "one hundred million, one hundred twenty-four thousand, two hundred ninety-one".