101123100223 has 4 divisors (see below), whose sum is σ = 101168186328. Its totient is φ = 101078014120.

The previous prime is 101123100217. The next prime is 101123100229. The reversal of 101123100223 is 322001321101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322001321101 = 55793 ⋅5771357.

It is an interprime number because it is at equal distance from previous prime (101123100217) and next prime (101123100229).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101123100223 is a prime.

It is a super-5 number, since 5×101123100223⁵ (a number of 56 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101123100197 and 101123100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101123100229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22539688 + ... + 22544173.

It is an arithmetic number, because the mean of its divisors is an integer number (25292046582).

Almost surely, 2^101123100223 is an apocalyptic number.

101123100223 is a deficient number, since it is larger than the sum of its proper divisors (45086105).

101123100223 is an equidigital number, since it uses as much as digits as its factorization.

101123100223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45086104.

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

Adding to 101123100223 its reverse (322001321101), we get a palindrome (423124421324).

The spelling of 101123100223 in words is "one hundred one billion, one hundred twenty-three million, one hundred thousand, two hundred twenty-three".