111553324031 has 4 divisors (see below), whose sum is σ = 111947505672. Its totient is φ = 111159142392.

The previous prime is 111553324009. The next prime is 111553324033. The reversal of 111553324031 is 130423355111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111553324031 - 2¹⁸ = 111553061887 is a prime.

It is a super-2 number, since 2×111553324031² (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 = 111553323985 and 111553324003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111553324033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197090396 + ... + 197090961.

It is an arithmetic number, because the mean of its divisors is an integer number (27986876418).

Almost surely, 2^111553324031 is an apocalyptic number.

111553324031 is a deficient number, since it is larger than the sum of its proper divisors (394181641).

111553324031 is an equidigital number, since it uses as much as digits as its factorization.

111553324031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394181640.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 111553324031 its reverse (130423355111), we get a palindrome (241976679142).

The spelling of 111553324031 in words is "one hundred eleven billion, five hundred fifty-three million, three hundred twenty-four thousand, thirty-one".