101121111223 has 12 divisors (see below), whose sum is σ = 111170695104. Its totient is φ = 91910878400.

The previous prime is 101121111197. The next prime is 101121111233. The reversal of 101121111223 is 322111121101.

It is a happy number.

It is not a de Polignac number, because 101121111223 - 2²¹ = 101119014071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101121111197 and 101121111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121111233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585615 + ... + 738367.

It is an arithmetic number, because the mean of its divisors is an integer number (9264224592).

Almost surely, 2^101121111223 is an apocalyptic number.

101121111223 is a deficient number, since it is larger than the sum of its proper divisors (10049583881).

101121111223 is a wasteful number, since it uses less digits than its factorization.

101121111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158246 (or 158235 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101121111223 its reverse (322111121101), we get a palindrome (423232232324).

The spelling of 101121111223 in words is "one hundred one billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twenty-three".