102543565123 has 16 divisors (see below), whose sum is σ = 109796031360. Its totient is φ = 95429248000.

The previous prime is 102543565051. The next prime is 102543565127. The reversal of 102543565123 is 321565345201.

It is a cyclic number.

It is not a de Polignac number, because 102543565123 - 2¹³ = 102543556931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102543565127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1267398 + ... + 1345876.

It is an arithmetic number, because the mean of its divisors is an integer number (6862251960).

Almost surely, 2^102543565123 is an apocalyptic number.

102543565123 is a deficient number, since it is larger than the sum of its proper divisors (7252466237).

102543565123 is a wasteful number, since it uses less digits than its factorization.

102543565123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79358.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 102543565123 in words is "one hundred two billion, five hundred forty-three million, five hundred sixty-five thousand, one hundred twenty-three".