111323011031 has 4 divisors (see below), whose sum is σ = 114038206464. Its totient is φ = 108607815600.

The previous prime is 111323011027. The next prime is 111323011057. The reversal of 111323011031 is 130110323111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130110323111 = 2753 ⋅47261287.

It is a cyclic number.

It is not a de Polignac number, because 111323011031 - 2² = 111323011027 is a prime.

It is a super-2 number, since 2×111323011031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111323031031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357597655 + ... + 1357597736.

It is an arithmetic number, because the mean of its divisors is an integer number (28509551616).

Almost surely, 2^111323011031 is an apocalyptic number.

111323011031 is a deficient number, since it is larger than the sum of its proper divisors (2715195433).

111323011031 is an equidigital number, since it uses as much as digits as its factorization.

111323011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715195432.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 111323011031 its reverse (130110323111), we get a palindrome (241433334142).

The spelling of 111323011031 in words is "one hundred eleven billion, three hundred twenty-three million, eleven thousand, thirty-one".