111423310031 has 4 divisors (see below), whose sum is σ = 121552701864. Its totient is φ = 101293918200.

The previous prime is 111423310021. The next prime is 111423310051. The reversal of 111423310031 is 130013324111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111423310031 is a prime.

It is a super-2 number, since 2×111423310031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111423309985 and 111423310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111423310021) 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, 5064695900 + ... + 5064695921.

It is an arithmetic number, because the mean of its divisors is an integer number (30388175466).

Almost surely, 2^111423310031 is an apocalyptic number.

111423310031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111423310031 is a deficient number, since it is larger than the sum of its proper divisors (10129391833).

111423310031 is a wasteful number, since it uses less digits than its factorization.

111423310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129391832.

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

Adding to 111423310031 its reverse (130013324111), we get a palindrome (241436634142).

The spelling of 111423310031 in words is "one hundred eleven billion, four hundred twenty-three million, three hundred ten thousand, thirty-one".