111120311213 has 4 divisors (see below), whose sum is σ = 113830562748. Its totient is φ = 108410059680.

The previous prime is 111120311209. The next prime is 111120311233. The reversal of 111120311213 is 312113021111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5311931689 + 105808379524 = 72883^2 + 325282^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120311213 - 2² = 111120311209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111120311191 and 111120311200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120311233) 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, 1355125706 + ... + 1355125787.

It is an arithmetic number, because the mean of its divisors is an integer number (28457640687).

Almost surely, 2^111120311213 is an apocalyptic number.

It is an amenable number.

111120311213 is a deficient number, since it is larger than the sum of its proper divisors (2710251535).

111120311213 is an equidigital number, since it uses as much as digits as its factorization.

111120311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710251534.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111120311213 its reverse (312113021111), we get a palindrome (423233332324).

The spelling of 111120311213 in words is "one hundred eleven billion, one hundred twenty million, three hundred eleven thousand, two hundred thirteen".