102110320123 has 24 divisors (see below), whose sum is σ = 124003715072. Its totient is φ = 82349564544.

The previous prime is 102110320121. The next prime is 102110320127. The reversal of 102110320123 is 321023011201.

It is not a de Polignac number, because 102110320123 - 2¹ = 102110320121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102110320097 and 102110320106.

It is not an unprimeable number, because it can be changed into a prime (102110320121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9549286 + ... + 9559972.

Almost surely, 2^102110320123 is an apocalyptic number.

102110320123 is a deficient number, since it is larger than the sum of its proper divisors (21893394949).

102110320123 is a wasteful number, since it uses less digits than its factorization.

102110320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15451 (or 15434 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102110320123 its reverse (321023011201), we get a palindrome (423133331324).

The spelling of 102110320123 in words is "one hundred two billion, one hundred ten million, three hundred twenty thousand, one hundred twenty-three".