111242300321 has 4 divisors (see below), whose sum is σ = 111885319572. Its totient is φ = 110599281072.

The previous prime is 111242300249. The next prime is 111242300381. The reversal of 111242300321 is 123003242111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123003242111 = 18787 ⋅6547253.

It can be written as a sum of positive squares in 2 ways, for example, as 52709272225 + 58533028096 = 229585^2 + 241936^2 .

It is a cyclic number.

It is not a de Polignac number, because 111242300321 - 2¹⁸ = 111242038177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111242300293 and 111242300302.

It is not an unprimeable number, because it can be changed into a prime (111242300381) 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, 321509366 + ... + 321509711.

It is an arithmetic number, because the mean of its divisors is an integer number (27971329893).

Almost surely, 2^111242300321 is an apocalyptic number.

It is an amenable number.

111242300321 is a deficient number, since it is larger than the sum of its proper divisors (643019251).

111242300321 is an equidigital number, since it uses as much as digits as its factorization.

111242300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643019250.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111242300321 its reverse (123003242111), we get a palindrome (234245542432).

The spelling of 111242300321 in words is "one hundred eleven billion, two hundred forty-two million, three hundred thousand, three hundred twenty-one".