2101420379 has 2 divisors, whose sum is σ = 2101420380. Its totient is φ = 2101420378.

The previous prime is 2101420327. The next prime is 2101420393. The reversal of 2101420379 is 9730241012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101420379 - 2²⁰ = 2100371803 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101425379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050710189 + 1050710190.

It is an arithmetic number, because the mean of its divisors is an integer number (1050710190).

Almost surely, 2^2101420379 is an apocalyptic number.

2101420379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101420379 is an equidigital number, since it uses as much as digits as its factorization.

2101420379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2101420379 is about 45841.2519353475. The cubic root of 2101420379 is about 1280.8678154355.

The spelling of 2101420379 in words is "two billion, one hundred one million, four hundred twenty thousand, three hundred seventy-nine".