23121423133 has 8 divisors (see below), whose sum is σ = 24401894400. Its totient is φ = 21847307328.

The previous prime is 23121423107. The next prime is 23121423161. The reversal of 23121423133 is 33132412132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23121423133 is a prime.

It is a super-3 number, since 3×23121423133³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23121423098 and 23121423107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121421133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581388 + ... + 1595941.

It is an arithmetic number, because the mean of its divisors is an integer number (3050236800).

Almost surely, 2^23121423133 is an apocalyptic number.

It is an amenable number.

23121423133 is a deficient number, since it is larger than the sum of its proper divisors (1280471267).

23121423133 is a wasteful number, since it uses less digits than its factorization.

23121423133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177731.

The product of its digits is 2592, while the sum is 25.

Adding to 23121423133 its reverse (33132412132), we get a palindrome (56253835265).

The spelling of 23121423133 in words is "twenty-three billion, one hundred twenty-one million, four hundred twenty-three thousand, one hundred thirty-three".