100021300123 has 2 divisors, whose sum is σ = 100021300124. Its totient is φ = 100021300122.

The previous prime is 100021300091. The next prime is 100021300129. The reversal of 100021300123 is 321003120001.

It is a strong prime.

It is an emirp because it is prime and its reverse (321003120001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100021300123 - 2⁵ = 100021300091 is a prime.

It is not a weakly prime, because it can be changed into another prime (100021300129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010650061 + 50010650062.

It is an arithmetic number, because the mean of its divisors is an integer number (50010650062).

Almost surely, 2^100021300123 is an apocalyptic number.

100021300123 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021300123 is an equidigital number, since it uses as much as digits as its factorization.

100021300123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 100021300123 its reverse (321003120001), we get a palindrome (421024420124).

The spelling of 100021300123 in words is "one hundred billion, twenty-one million, three hundred thousand, one hundred twenty-three".