100202320123 has 2 divisors, whose sum is σ = 100202320124. Its totient is φ = 100202320122.

The previous prime is 100202320111. The next prime is 100202320147. The reversal of 100202320123 is 321023202001.

It is a weak prime.

It is an emirp because it is prime and its reverse (321023202001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100202320123 - 2⁹ = 100202319611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100202320097 and 100202320106.

It is not a weakly prime, because it can be changed into another prime (100202320103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50101160061 + 50101160062.

It is an arithmetic number, because the mean of its divisors is an integer number (50101160062).

Almost surely, 2^100202320123 is an apocalyptic number.

100202320123 is a deficient number, since it is larger than the sum of its proper divisors (1).

100202320123 is an equidigital number, since it uses as much as digits as its factorization.

100202320123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 100202320123 its reverse (321023202001), we get a palindrome (421225522124).

The spelling of 100202320123 in words is "one hundred billion, two hundred two million, three hundred twenty thousand, one hundred twenty-three".