121020010100239 has 2 divisors, whose sum is σ = 121020010100240. Its totient is φ = 121020010100238.

The previous prime is 121020010100183. The next prime is 121020010100251. The reversal of 121020010100239 is 932001010020121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121020010100239 - 2⁷ = 121020010100111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020010104239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510005050119 + 60510005050120.

It is an arithmetic number, because the mean of its divisors is an integer number (60510005050120).

Almost surely, 2^{121020010100239} is an apocalyptic number.

121020010100239 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020010100239 is an equidigital number, since it uses as much as digits as its factorization.

121020010100239 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 121020010100239 in words is "one hundred twenty-one trillion, twenty billion, ten million, one hundred thousand, two hundred thirty-nine".