111431222313 has 4 divisors (see below), whose sum is σ = 148574963088. Its totient is φ = 74287481540.

The previous prime is 111431222303. The next prime is 111431222321. The reversal of 111431222313 is 313222134111.

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 a cyclic number.

It is not a de Polignac number, because 111431222313 - 2¹³ = 111431214121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111431222303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18571870383 + ... + 18571870388.

It is an arithmetic number, because the mean of its divisors is an integer number (37143740772).

Almost surely, 2^111431222313 is an apocalyptic number.

It is an amenable number.

111431222313 is a deficient number, since it is larger than the sum of its proper divisors (37143740775).

111431222313 is an equidigital number, since it uses as much as digits as its factorization.

111431222313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37143740774.

The product of its digits is 864, while the sum is 24.

Adding to 111431222313 its reverse (313222134111), we get a palindrome (424653356424).

The spelling of 111431222313 in words is "one hundred eleven billion, four hundred thirty-one million, two hundred twenty-two thousand, three hundred thirteen".