23240211205 has 4 divisors (see below), whose sum is σ = 27888253452. Its totient is φ = 18592168960.

The previous prime is 23240211167. The next prime is 23240211221. The reversal of 23240211205 is 50211204232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6917082561 + 16323128644 = 83169^2 + 127762^2 .

It is not a de Polignac number, because 23240211205 - 2⁷ = 23240211077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2324021116 + ... + 2324021125.

It is an arithmetic number, because the mean of its divisors is an integer number (6972063363).

Almost surely, 2^23240211205 is an apocalyptic number.

It is an amenable number.

23240211205 is a deficient number, since it is larger than the sum of its proper divisors (4648042247).

23240211205 is an equidigital number, since it uses as much as digits as its factorization.

23240211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4648042246.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 23240211205 its reverse (50211204232), we get a palindrome (73451415437).

The spelling of 23240211205 in words is "twenty-three billion, two hundred forty million, two hundred eleven thousand, two hundred five".