102243404523 has 32 divisors (see below), whose sum is σ = 154564300800. Its totient is φ = 59597323776.

The previous prime is 102243404519. The next prime is 102243404533. The reversal of 102243404523 is 325404342201.

It is not a de Polignac number, because 102243404523 - 2² = 102243404519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102243404513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8186998 + ... + 8199476.

It is an arithmetic number, because the mean of its divisors is an integer number (4830134400).

Almost surely, 2^102243404523 is an apocalyptic number.

102243404523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102243404523 is a deficient number, since it is larger than the sum of its proper divisors (52320896277).

102243404523 is a wasteful number, since it uses less digits than its factorization.

102243404523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23571.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 102243404523 its reverse (325404342201), we get a palindrome (427647746724).

The spelling of 102243404523 in words is "one hundred two billion, two hundred forty-three million, four hundred four thousand, five hundred twenty-three".