2020111121939 has 2 divisors, whose sum is σ = 2020111121940. Its totient is φ = 2020111121938.

The previous prime is 2020111121929. The next prime is 2020111122013. The reversal of 2020111121939 is 9391211110202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2020111121939 - 2³² = 2015816154643 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020111121929) 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, 1010055560969 + 1010055560970.

It is an arithmetic number, because the mean of its divisors is an integer number (1010055560970).

Almost surely, 2^{2020111121939} is an apocalyptic number.

2020111121939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020111121939 is an equidigital number, since it uses as much as digits as its factorization.

2020111121939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 2020111121939 in words is "two trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, nine hundred thirty-nine".