23231111011 has 2 divisors, whose sum is σ = 23231111012. Its totient is φ = 23231111010.

The previous prime is 23231110999. The next prime is 23231111051. The reversal of 23231111011 is 11011113232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23231111011 - 2³¹ = 21083627363 is a prime.

It is not a weakly prime, because it can be changed into another prime (23231111051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615555505 + 11615555506.

It is an arithmetic number, because the mean of its divisors is an integer number (11615555506).

Almost surely, 2^23231111011 is an apocalyptic number.

23231111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231111011 is an equidigital number, since it uses as much as digits as its factorization.

23231111011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 23231111011 its reverse (11011113232), we get a palindrome (34242224243).

The spelling of 23231111011 in words is "twenty-three billion, two hundred thirty-one million, one hundred eleven thousand, eleven".