11022321123 has 24 divisors (see below), whose sum is σ = 17512066416. Its totient is φ = 6680187360.

The previous prime is 11022321091. The next prime is 11022321133. The reversal of 11022321123 is 32112322011.

It is not a de Polignac number, because 11022321123 - 2⁵ = 11022321091 is a prime.

It is a super-2 number, since 2×11022321123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11022321096 and 11022321105.

It is not an unprimeable number, because it can be changed into a prime (11022321133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448090 + ... + 472047.

It is an arithmetic number, because the mean of its divisors is an integer number (729669434).

Almost surely, 2^11022321123 is an apocalyptic number.

11022321123 is a deficient number, since it is larger than the sum of its proper divisors (6489745293).

11022321123 is an equidigital number, since it uses as much as digits as its factorization.

11022321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920176 (or 920151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11022321123 its reverse (32112322011), we get a palindrome (43134643134).

It can be divided in two parts, 1102232 and 1123, that added together give a triangular number (1103355 = T₁₄₈₅).

The spelling of 11022321123 in words is "eleven billion, twenty-two million, three hundred twenty-one thousand, one hundred twenty-three".