102021419959 has 2 divisors, whose sum is σ = 102021419960. Its totient is φ = 102021419958.

The previous prime is 102021419939. The next prime is 102021420013. The reversal of 102021419959 is 959914120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102021419959 - 2¹⁵ = 102021387191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021419939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010709979 + 51010709980.

It is an arithmetic number, because the mean of its divisors is an integer number (51010709980).

Almost surely, 2^102021419959 is an apocalyptic number.

102021419959 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021419959 is an equidigital number, since it uses as much as digits as its factorization.

102021419959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 102021419959 in words is "one hundred two billion, twenty-one million, four hundred nineteen thousand, nine hundred fifty-nine".