102231019999 has 4 divisors (see below), whose sum is σ = 102327374520. Its totient is φ = 102134665480.

The previous prime is 102231019993. The next prime is 102231020041. The reversal of 102231019999 is 999910132201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102231019999 - 2⁵ = 102231019967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231019993) 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 in 3 ways as a sum of consecutive naturals, for example, 48175669 + ... + 48177790.

It is an arithmetic number, because the mean of its divisors is an integer number (25581843630).

Almost surely, 2^102231019999 is an apocalyptic number.

102231019999 is a deficient number, since it is larger than the sum of its proper divisors (96354521).

102231019999 is an equidigital number, since it uses as much as digits as its factorization.

102231019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96354520.

The product of its (nonzero) digits is 78732, while the sum is 46.

The spelling of 102231019999 in words is "one hundred two billion, two hundred thirty-one million, nineteen thousand, nine hundred ninety-nine".