22431111011 has 4 divisors (see below), whose sum is σ = 22747042224. Its totient is φ = 22115179800.

The previous prime is 22431110963. The next prime is 22431111041. The reversal of 22431111011 is 11011113422.

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 22431111011 - 2¹⁴ = 22431094627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22431111041) 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, 157965500 + ... + 157965641.

It is an arithmetic number, because the mean of its divisors is an integer number (5686760556).

Almost surely, 2^22431111011 is an apocalyptic number.

22431111011 is a deficient number, since it is larger than the sum of its proper divisors (315931213).

22431111011 is an equidigital number, since it uses as much as digits as its factorization.

22431111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315931212.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 22431111011 its reverse (11011113422), we get a palindrome (33442224433).

The spelling of 22431111011 in words is "twenty-two billion, four hundred thirty-one million, one hundred eleven thousand, eleven".