111220312313 has 32 divisors (see below), whose sum is σ = 124947643392. Its totient is φ = 98128094400.

The previous prime is 111220312303. The next prime is 111220312337. The reversal of 111220312313 is 313213022111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111220312313 - 2⁸ = 111220312057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220312303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54868406 + ... + 54870432.

It is an arithmetic number, because the mean of its divisors is an integer number (3904613856).

Almost surely, 2^111220312313 is an apocalyptic number.

It is an amenable number.

111220312313 is a deficient number, since it is larger than the sum of its proper divisors (13727331079).

111220312313 is a wasteful number, since it uses less digits than its factorization.

111220312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111220312313 its reverse (313213022111), we get a palindrome (424433334424).

The spelling of 111220312313 in words is "one hundred eleven billion, two hundred twenty million, three hundred twelve thousand, three hundred thirteen".