23133242948209 has 3 divisors (see below), whose sum is σ = 23133247757913. Its totient is φ = 23133238138506.

The previous prime is 23133242948113. The next prime is 23133242948219. The reversal of 23133242948209 is 90284924233132.

It is a happy number.

The square root of 23133242948209 is 4809703.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 23133242948209 - 2¹⁵ = 23133242915441 is a prime.

It is a super-2 number, since 2×23133242948209² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23133242948219) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2404852 + ... + 7214554.

It is an arithmetic number, because the mean of its divisors is an integer number (7711082585971).

Almost surely, 2^{23133242948209} is an apocalyptic number.

23133242948209 is the 4809703-rd square number.

23133242948209 is the 2404852-nd centered octagonal number.

It is an amenable number.

23133242948209 is a deficient number, since it is larger than the sum of its proper divisors (4809704).

23133242948209 is an frugal number, since it uses more digits than its factorization.

23133242948209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9619406 (or 4809703 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 23133242948209 in words is "twenty-three trillion, one hundred thirty-three billion, two hundred forty-two million, nine hundred forty-eight thousand, two hundred nine".