23200012133 has 4 divisors (see below), whose sum is σ = 23202140460. Its totient is φ = 23197883808.

The previous prime is 23200012109. The next prime is 23200012139. The reversal of 23200012133 is 33121000232.

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 14970256609 + 8229755524 = 122353^2 + 90718^2 .

It is a cyclic number.

It is not a de Polignac number, because 23200012133 - 2³⁴ = 6020142949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23200012139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047728 + ... + 1069641.

It is an arithmetic number, because the mean of its divisors is an integer number (5800535115).

Almost surely, 2^23200012133 is an apocalyptic number.

It is an amenable number.

23200012133 is a deficient number, since it is larger than the sum of its proper divisors (2128327).

23200012133 is a wasteful number, since it uses less digits than its factorization.

23200012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128326.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23200012133 its reverse (33121000232), we get a palindrome (56321012365).

The spelling of 23200012133 in words is "twenty-three billion, two hundred million, twelve thousand, one hundred thirty-three".