100001121239 has 2 divisors, whose sum is σ = 100001121240. Its totient is φ = 100001121238.

The previous prime is 100001121191. The next prime is 100001121247. The reversal of 100001121239 is 932121100001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100001121239 - 2⁸ = 100001120983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100001121239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100001121289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000560619 + 50000560620.

It is an arithmetic number, because the mean of its divisors is an integer number (50000560620).

Almost surely, 2^100001121239 is an apocalyptic number.

100001121239 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001121239 is an equidigital number, since it uses as much as digits as its factorization.

100001121239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 100001121239 in words is "one hundred billion, one million, one hundred twenty-one thousand, two hundred thirty-nine".