102111223232123 has 16 divisors (see below), whose sum is σ = 117833418733056. Its totient is φ = 86672774355840.

The previous prime is 102111223232099. The next prime is 102111223232149. The reversal of 102111223232123 is 321232322111201.

It is a cyclic number.

It is not a de Polignac number, because 102111223232123 - 2¹⁰ = 102111223231099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102111223232092 and 102111223232101.

It is not an unprimeable number, because it can be changed into a prime (102111223432123) 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, 45357188 + ... + 47555198.

It is an arithmetic number, because the mean of its divisors is an integer number (7364588670816).

Almost surely, 2^{102111223232123} is an apocalyptic number.

102111223232123 is a deficient number, since it is larger than the sum of its proper divisors (15722195500933).

102111223232123 is a wasteful number, since it uses less digits than its factorization.

102111223232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262554.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 102111223232123 its reverse (321232322111201), we get a palindrome (423343545343324).

The spelling of 102111223232123 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-three".