23802139133 has 4 divisors (see below), whose sum is σ = 24205565280. Its totient is φ = 23398712988.

The previous prime is 23802139091. The next prime is 23802139147. The reversal of 23802139133 is 33193120832.

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 23802139133 - 2¹⁴ = 23802122749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23802139093 and 23802139102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23802169133) 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, 201712985 + ... + 201713102.

It is an arithmetic number, because the mean of its divisors is an integer number (6051391320).

Almost surely, 2^23802139133 is an apocalyptic number.

It is an amenable number.

23802139133 is a deficient number, since it is larger than the sum of its proper divisors (403426147).

23802139133 is an equidigital number, since it uses as much as digits as its factorization.

23802139133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403426146.

The product of its (nonzero) digits is 23328, while the sum is 35.

Adding to 23802139133 its reverse (33193120832), we get a palindrome (56995259965).

The spelling of 23802139133 in words is "twenty-three billion, eight hundred two million, one hundred thirty-nine thousand, one hundred thirty-three".