100120121239 has 2 divisors, whose sum is σ = 100120121240. Its totient is φ = 100120121238.

The previous prime is 100120121219. The next prime is 100120121267. The reversal of 100120121239 is 932121021001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120121239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100120121209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060060619 + 50060060620.

It is an arithmetic number, because the mean of its divisors is an integer number (50060060620).

Almost surely, 2^100120121239 is an apocalyptic number.

100120121239 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120121239 is an equidigital number, since it uses as much as digits as its factorization.

100120121239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 100120121239 in words is "one hundred billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-nine".