2002111939 has 2 divisors, whose sum is σ = 2002111940. Its totient is φ = 2002111938.

The previous prime is 2002111933. The next prime is 2002111987. The reversal of 2002111939 is 9391112002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002111939 - 2⁹ = 2002111427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002111933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001055969 + 1001055970.

It is an arithmetic number, because the mean of its divisors is an integer number (1001055970).

Almost surely, 2^2002111939 is an apocalyptic number.

2002111939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002111939 is an equidigital number, since it uses as much as digits as its factorization.

2002111939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2002111939 is about 44744.9655156868. The cubic root of 2002111939 is about 1260.3643732865.

The spelling of 2002111939 in words is "two billion, two million, one hundred eleven thousand, nine hundred thirty-nine".