23198311 has 2 divisors, whose sum is σ = 23198312. Its totient is φ = 23198310.

The previous prime is 23198309. The next prime is 23198321. The reversal of 23198311 is 11389132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23198311 - 2¹ = 23198309 is a prime.

Together with 23198309, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23198311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23198321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11599155 + 11599156.

It is an arithmetic number, because the mean of its divisors is an integer number (11599156).

Almost surely, 2^23198311 is an apocalyptic number.

23198311 is a deficient number, since it is larger than the sum of its proper divisors (1).

23198311 is an equidigital number, since it uses as much as digits as its factorization.

23198311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 23198311 is about 4816.4624985564. The cubic root of 23198311 is about 285.2017080339.

The spelling of 23198311 in words is "twenty-three million, one hundred ninety-eight thousand, three hundred eleven".