100001220023 has 2 divisors, whose sum is σ = 100001220024. Its totient is φ = 100001220022.

The previous prime is 100001219947. The next prime is 100001220029. The reversal of 100001220023 is 320022100001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100001220023 - 2²² = 99997025719 is a prime.

It is a super-2 number, since 2×100001220023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100001219986 and 100001220013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100001220029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000610011 + 50000610012.

It is an arithmetic number, because the mean of its divisors is an integer number (50000610012).

Almost surely, 2^100001220023 is an apocalyptic number.

100001220023 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001220023 is an equidigital number, since it uses as much as digits as its factorization.

100001220023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 100001220023 its reverse (320022100001), we get a palindrome (420023320024).

The spelling of 100001220023 in words is "one hundred billion, one million, two hundred twenty thousand, twenty-three".