111313232031 has 8 divisors (see below), whose sum is σ = 148421764480. Its totient is φ = 74206760472.

The previous prime is 111313231999. The next prime is 111313232101. The reversal of 111313232031 is 130232313111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111313232031 - 2⁵ = 111313231999 is a prime.

It is a super-2 number, since 2×111313232031² (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 = 111313231989 and 111313232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111313237031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384451 + ... + 608628.

It is an arithmetic number, because the mean of its divisors is an integer number (18552720560).

Almost surely, 2^111313232031 is an apocalyptic number.

111313232031 is a deficient number, since it is larger than the sum of its proper divisors (37108532449).

111313232031 is an equidigital number, since it uses as much as digits as its factorization.

111313232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030445.

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

Adding to 111313232031 its reverse (130232313111), we get a palindrome (241545545142).

The spelling of 111313232031 in words is "one hundred eleven billion, three hundred thirteen million, two hundred thirty-two thousand, thirty-one".