23201113133 has 4 divisors (see below), whose sum is σ = 25310305248. Its totient is φ = 21091921020.

The previous prime is 23201113109. The next prime is 23201113147. The reversal of 23201113133 is 33131110232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23201113133 - 2¹⁸ = 23200850989 is a prime.

It is a super-2 number, since 2×23201113133² (a number of 22 digits) contains 22 as substring.

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 (23201113163) 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, 1054596041 + ... + 1054596062.

It is an arithmetic number, because the mean of its divisors is an integer number (6327576312).

Almost surely, 2^23201113133 is an apocalyptic number.

It is an amenable number.

23201113133 is a deficient number, since it is larger than the sum of its proper divisors (2109192115).

23201113133 is a wasteful number, since it uses less digits than its factorization.

23201113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109192114.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23201113133 its reverse (33131110232), we get a palindrome (56332223365).

The spelling of 23201113133 in words is "twenty-three billion, two hundred one million, one hundred thirteen thousand, one hundred thirty-three".