102131033122123 has 4 divisors (see below), whose sum is σ = 103862067581880. Its totient is φ = 100399998662368.

The previous prime is 102131033122073. The next prime is 102131033122127. The reversal of 102131033122123 is 321221330131201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102131033122123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102131033122127) 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, 865517229790 + ... + 865517229907.

It is an arithmetic number, because the mean of its divisors is an integer number (25965516895470).

Almost surely, 2^{102131033122123} is an apocalyptic number.

102131033122123 is a deficient number, since it is larger than the sum of its proper divisors (1731034459757).

102131033122123 is an equidigital number, since it uses as much as digits as its factorization.

102131033122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731034459756.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 102131033122123 its reverse (321221330131201), we get a palindrome (423352363253324).

The spelling of 102131033122123 in words is "one hundred two trillion, one hundred thirty-one billion, thirty-three million, one hundred twenty-two thousand, one hundred twenty-three".