111022231321 has 4 divisors (see below), whose sum is σ = 111182900944. Its totient is φ = 110861561700.

The previous prime is 111022231297. The next prime is 111022231349. The reversal of 111022231321 is 123132220111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123132220111 = 149 ⋅826390739.

It is a cyclic number.

It is not a de Polignac number, because 111022231321 - 2⁷ = 111022231193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022231361) 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, 80333775 + ... + 80335156.

It is an arithmetic number, because the mean of its divisors is an integer number (27795725236).

Almost surely, 2^111022231321 is an apocalyptic number.

It is an amenable number.

111022231321 is a deficient number, since it is larger than the sum of its proper divisors (160669623).

111022231321 is an equidigital number, since it uses as much as digits as its factorization.

111022231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160669622.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111022231321 its reverse (123132220111), we get a palindrome (234154451432).

The spelling of 111022231321 in words is "one hundred eleven billion, twenty-two million, two hundred thirty-one thousand, three hundred twenty-one".