102931085479 has 2 divisors, whose sum is σ = 102931085480. Its totient is φ = 102931085478.

The previous prime is 102931085407. The next prime is 102931085497. The reversal of 102931085479 is 974580139201.

It is a happy number.

Together with next prime (102931085497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102931085479 - 2⁷ = 102931085351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102931082479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51465542739 + 51465542740.

It is an arithmetic number, because the mean of its divisors is an integer number (51465542740).

Almost surely, 2^102931085479 is an apocalyptic number.

102931085479 is a deficient number, since it is larger than the sum of its proper divisors (1).

102931085479 is an equidigital number, since it uses as much as digits as its factorization.

102931085479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 102931085479 in words is "one hundred two billion, nine hundred thirty-one million, eighty-five thousand, four hundred seventy-nine".