102311223523 has 4 divisors (see below), whose sum is σ = 102326480080. Its totient is φ = 102295966968.

The previous prime is 102311223493. The next prime is 102311223533. The reversal of 102311223523 is 325322113201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325322113201 = 17623 ⋅18460087.

It is a cyclic number.

It is not a de Polignac number, because 102311223523 - 2⁵ = 102311223491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102311223533) 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 in 3 ways as a sum of consecutive naturals, for example, 7618215 + ... + 7631632.

It is an arithmetic number, because the mean of its divisors is an integer number (25581620020).

Almost surely, 2^102311223523 is an apocalyptic number.

102311223523 is a deficient number, since it is larger than the sum of its proper divisors (15256557).

102311223523 is an equidigital number, since it uses as much as digits as its factorization.

102311223523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256556.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 102311223523 its reverse (325322113201), we get a palindrome (427633336724).

The spelling of 102311223523 in words is "one hundred two billion, three hundred eleven million, two hundred twenty-three thousand, five hundred twenty-three".