100320210123 has 24 divisors (see below), whose sum is σ = 157921077312. Its totient is φ = 56470219344.

The previous prime is 100320210101. The next prime is 100320210143. The reversal of 100320210123 is 321012023001.

It is not a de Polignac number, because 100320210123 - 2⁵ = 100320210091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100320210143) 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, 5083065 + ... + 5102762.

It is an arithmetic number, because the mean of its divisors is an integer number (6580044888).

Almost surely, 2^100320210123 is an apocalyptic number.

100320210123 is a deficient number, since it is larger than the sum of its proper divisors (57600867189).

100320210123 is a wasteful number, since it uses less digits than its factorization.

100320210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10185911 (or 10185904 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100320210123 its reverse (321012023001), we get a palindrome (421332233124).

The spelling of 100320210123 in words is "one hundred billion, three hundred twenty million, two hundred ten thousand, one hundred twenty-three".