105313199987 has 2 divisors, whose sum is σ = 105313199988. Its totient is φ = 105313199986.

The previous prime is 105313199947. The next prime is 105313200007. The reversal of 105313199987 is 789991313501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105313199987 - 2⁶ = 105313199923 is a prime.

It is a super-2 number, since 2×105313199987² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105313199947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52656599993 + 52656599994.

It is an arithmetic number, because the mean of its divisors is an integer number (52656599994).

Almost surely, 2^105313199987 is an apocalyptic number.

105313199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

105313199987 is an equidigital number, since it uses as much as digits as its factorization.

105313199987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 56.

The spelling of 105313199987 in words is "one hundred five billion, three hundred thirteen million, one hundred ninety-nine thousand, nine hundred eighty-seven".