101902420488991 has 2 divisors, whose sum is σ = 101902420488992. Its totient is φ = 101902420488990.

The previous prime is 101902420488889. The next prime is 101902420489063. The reversal of 101902420488991 is 199884024209101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101902420488991 - 2²⁹ = 101901883618079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101902420488391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50951210244495 + 50951210244496.

It is an arithmetic number, because the mean of its divisors is an integer number (50951210244496).

Almost surely, 2^{101902420488991} is an apocalyptic number.

101902420488991 is a deficient number, since it is larger than the sum of its proper divisors (1).

101902420488991 is an equidigital number, since it uses as much as digits as its factorization.

101902420488991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 58.

The spelling of 101902420488991 in words is "one hundred one trillion, nine hundred two billion, four hundred twenty million, four hundred eighty-eight thousand, nine hundred ninety-one".