102195081379 has 2 divisors, whose sum is σ = 102195081380. Its totient is φ = 102195081378.

The previous prime is 102195081371. The next prime is 102195081427. The reversal of 102195081379 is 973180591201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102195081379 - 2³ = 102195081371 is a prime.

It is not a weakly prime, because it can be changed into another prime (102195081371) 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, 51097540689 + 51097540690.

It is an arithmetic number, because the mean of its divisors is an integer number (51097540690).

Almost surely, 2^102195081379 is an apocalyptic number.

102195081379 is a deficient number, since it is larger than the sum of its proper divisors (1).

102195081379 is an equidigital number, since it uses as much as digits as its factorization.

102195081379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 102195081379 in words is "one hundred two billion, one hundred ninety-five million, eighty-one thousand, three hundred seventy-nine".