23211303311 has 16 divisors (see below), whose sum is σ = 28134604800. Its totient is φ = 18693767040.

The previous prime is 23211303253. The next prime is 23211303361. The reversal of 23211303311 is 11330311232.

It is a cyclic number.

It is not a de Polignac number, because 23211303311 - 2¹⁴ = 23211286927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211303361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91535 + ... + 234096.

It is an arithmetic number, because the mean of its divisors is an integer number (1758412800).

Almost surely, 2^23211303311 is an apocalyptic number.

23211303311 is a deficient number, since it is larger than the sum of its proper divisors (4923301489).

23211303311 is a wasteful number, since it uses less digits than its factorization.

23211303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326254.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23211303311 its reverse (11330311232), we get a palindrome (34541614543).

The spelling of 23211303311 in words is "twenty-three billion, two hundred eleven million, three hundred three thousand, three hundred eleven".