11110423122021 has 4 divisors (see below), whose sum is σ = 14813897496032. Its totient is φ = 7406948748012.

The previous prime is 11110423122011. The next prime is 11110423122061. The reversal of 11110423122021 is 12022132401111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11110423122021 - 2⁵ = 11110423121989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110423122011) 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, 1851737187001 + ... + 1851737187006.

It is an arithmetic number, because the mean of its divisors is an integer number (3703474374008).

Almost surely, 2^{11110423122021} is an apocalyptic number.

It is an amenable number.

11110423122021 is a deficient number, since it is larger than the sum of its proper divisors (3703474374011).

11110423122021 is an equidigital number, since it uses as much as digits as its factorization.

11110423122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703474374010.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11110423122021 its reverse (12022132401111), we get a palindrome (23132555523132).

The spelling of 11110423122021 in words is "eleven trillion, one hundred ten billion, four hundred twenty-three million, one hundred twenty-two thousand, twenty-one".