121102039 has 2 divisors, whose sum is σ = 121102040. Its totient is φ = 121102038.

The previous prime is 121102021. The next prime is 121102049. The reversal of 121102039 is 930201121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121102039 - 2⁹ = 121101527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121102049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551019 + 60551020.

It is an arithmetic number, because the mean of its divisors is an integer number (60551020).

Almost surely, 2^121102039 is an apocalyptic number.

121102039 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102039 is an equidigital number, since it uses as much as digits as its factorization.

121102039 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 19.

The square root of 121102039 is about 11004.6371589435. The cubic root of 121102039 is about 494.7477393701.

The spelling of 121102039 in words is "one hundred twenty-one million, one hundred two thousand, thirty-nine".