111302122213 has 4 divisors (see below), whose sum is σ = 111792440160. Its totient is φ = 110811804268.

The previous prime is 111302122207. The next prime is 111302122231. The reversal of 111302122213 is 312221203111.

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: 312221203111 = 23459 ⋅13309229.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111302122213 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 (111302126213) 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, 245158633 + ... + 245159086.

It is an arithmetic number, because the mean of its divisors is an integer number (27948110040).

Almost surely, 2^111302122213 is an apocalyptic number.

It is an amenable number.

111302122213 is a deficient number, since it is larger than the sum of its proper divisors (490317947).

111302122213 is an equidigital number, since it uses as much as digits as its factorization.

111302122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490317946.

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

Adding to 111302122213 its reverse (312221203111), we get a palindrome (423523325324).

The spelling of 111302122213 in words is "one hundred eleven billion, three hundred two million, one hundred twenty-two thousand, two hundred thirteen".