23111331243 has 64 divisors (see below), whose sum is σ = 41500913664. Its totient is φ = 11048400000.

The previous prime is 23111331239. The next prime is 23111331277. The reversal of 23111331243 is 34213311132.

It is not a de Polignac number, because 23111331243 - 2² = 23111331239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23111331233) 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 63 ways as a sum of consecutive naturals, for example, 982368 + ... + 1005618.

It is an arithmetic number, because the mean of its divisors is an integer number (648451776).

Almost surely, 2^23111331243 is an apocalyptic number.

23111331243 is a deficient number, since it is larger than the sum of its proper divisors (18389582421).

23111331243 is a wasteful number, since it uses less digits than its factorization.

23111331243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23616.

The product of its digits is 1296, while the sum is 24.

Adding to 23111331243 its reverse (34213311132), we get a palindrome (57324642375).

The spelling of 23111331243 in words is "twenty-three billion, one hundred eleven million, three hundred thirty-one thousand, two hundred forty-three".