102247297511819 has 4 divisors (see below), whose sum is σ = 102255388629744. Its totient is φ = 102239206393896.

The previous prime is 102247297511773. The next prime is 102247297511903. The reversal of 102247297511819 is 918115792742201.

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 102247297511819 - 2⁴⁰ = 101147785884043 is a prime.

It is a super-2 number, since 2×102247297511819² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102247297501819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4045540007 + ... + 4045565280.

It is an arithmetic number, because the mean of its divisors is an integer number (25563847157436).

Almost surely, 2^{102247297511819} is an apocalyptic number.

102247297511819 is a deficient number, since it is larger than the sum of its proper divisors (8091117925).

102247297511819 is an equidigital number, since it uses as much as digits as its factorization.

102247297511819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091117924.

The product of its (nonzero) digits is 5080320, while the sum is 59.

The spelling of 102247297511819 in words is "one hundred two trillion, two hundred forty-seven billion, two hundred ninety-seven million, five hundred eleven thousand, eight hundred nineteen".