2100120121039 has 2 divisors, whose sum is σ = 2100120121040. Its totient is φ = 2100120121038.

The previous prime is 2100120120997. The next prime is 2100120121081. The reversal of 2100120121039 is 9301210210012.

It is a balanced prime because it is at equal distance from previous prime (2100120120997) and next prime (2100120121081).

It is a cyclic number.

It is not a de Polignac number, because 2100120121039 - 2¹⁵ = 2100120088271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100120128039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060060519 + 1050060060520.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060060520).

Almost surely, 2^{2100120121039} is an apocalyptic number.

2100120121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100120121039 is an equidigital number, since it uses as much as digits as its factorization.

2100120121039 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 2100120121039 in words is "two trillion, one hundred billion, one hundred twenty million, one hundred twenty-one thousand, thirty-nine".