23211032011 has 2 divisors, whose sum is σ = 23211032012. Its totient is φ = 23211032010.

The previous prime is 23211031999. The next prime is 23211032017. The reversal of 23211032011 is 11023011232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23211032011 - 2⁹ = 23211031499 is a prime.

It is not a weakly prime, because it can be changed into another prime (23211032017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605516005 + 11605516006.

It is an arithmetic number, because the mean of its divisors is an integer number (11605516006).

Almost surely, 2^23211032011 is an apocalyptic number.

23211032011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211032011 is an equidigital number, since it uses as much as digits as its factorization.

23211032011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23211032011 its reverse (11023011232), we get a palindrome (34234043243).

The spelling of 23211032011 in words is "twenty-three billion, two hundred eleven million, thirty-two thousand, eleven".