111302313231 has 16 divisors (see below), whose sum is σ = 153262039040. Its totient is φ = 71774307360.

The previous prime is 111302313217. The next prime is 111302313233. The reversal of 111302313231 is 132313203111.

It is a happy number.

It is not a de Polignac number, because 111302313231 - 2¹³ = 111302305039 is a prime.

It is a super-2 number, since 2×111302313231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111302313198 and 111302313207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111302313233) 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 15 ways as a sum of consecutive naturals, for example, 79936 + ... + 478533.

It is an arithmetic number, because the mean of its divisors is an integer number (9578877440).

Almost surely, 2^111302313231 is an apocalyptic number.

111302313231 is a deficient number, since it is larger than the sum of its proper divisors (41959725809).

111302313231 is a wasteful number, since it uses less digits than its factorization.

111302313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560646.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111302313231 its reverse (132313203111), we get a palindrome (243615516342).

The spelling of 111302313231 in words is "one hundred eleven billion, three hundred two million, three hundred thirteen thousand, two hundred thirty-one".