2002012100939 has 2 divisors, whose sum is σ = 2002012100940. Its totient is φ = 2002012100938.

The previous prime is 2002012100929. The next prime is 2002012101007. The reversal of 2002012100939 is 9390012102002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002012100939 - 2¹⁶ = 2002012035403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002012100929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001006050469 + 1001006050470.

It is an arithmetic number, because the mean of its divisors is an integer number (1001006050470).

Almost surely, 2^{2002012100939} is an apocalyptic number.

2002012100939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002012100939 is an equidigital number, since it uses as much as digits as its factorization.

2002012100939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 2002012100939 in words is "two trillion, two billion, twelve million, one hundred thousand, nine hundred thirty-nine".