23132311 has 2 divisors, whose sum is σ = 23132312. Its totient is φ = 23132310.

The previous prime is 23132309. The next prime is 23132371. The reversal of 23132311 is 11323132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23132311 - 2¹ = 23132309 is a prime.

It is a super-3 number, since 3×23132311³ (a number of 23 digits) contains 333 as substring.

Together with 23132309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23132371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566155 + 11566156.

It is an arithmetic number, because the mean of its divisors is an integer number (11566156).

Almost surely, 2^23132311 is an apocalyptic number.

23132311 is a deficient number, since it is larger than the sum of its proper divisors (1).

23132311 is an equidigital number, since it uses as much as digits as its factorization.

23132311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 16.

The square root of 23132311 is about 4809.6061169289. The cubic root of 23132311 is about 284.9309815430.

Adding to 23132311 its reverse (11323132), we get a palindrome (34455443).

It can be divided in two parts, 2313 and 2311, that added together give a square (4624 = 68²).

The spelling of 23132311 in words is "twenty-three million, one hundred thirty-two thousand, three hundred eleven".