23111232423031 has 4 divisors (see below), whose sum is σ = 23112044882752. Its totient is φ = 23110419963312.

The previous prime is 23111232422987. The next prime is 23111232423091. The reversal of 23111232423031 is 13032423211132.

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 23111232423031 - 2³¹ = 23109084939383 is a prime.

It is a super-2 number, since 2×23111232423031² (a number of 28 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 (23111232423091) 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 3 ways as a sum of consecutive naturals, for example, 406187190 + ... + 406244083.

It is an arithmetic number, because the mean of its divisors is an integer number (5778011220688).

Almost surely, 2^{23111232423031} is an apocalyptic number.

23111232423031 is a deficient number, since it is larger than the sum of its proper divisors (812459721).

23111232423031 is an equidigital number, since it uses as much as digits as its factorization.

23111232423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812459720.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 23111232423031 its reverse (13032423211132), we get a palindrome (36143655634163).

The spelling of 23111232423031 in words is "twenty-three trillion, one hundred eleven billion, two hundred thirty-two million, four hundred twenty-three thousand, thirty-one".