23134025221 has 4 divisors (see below), whose sum is σ = 24494850252. Its totient is φ = 21773200192.

The previous prime is 23134025219. The next prime is 23134025237. The reversal of 23134025221 is 12252043132.

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 17252822500 + 5881202721 = 131350^2 + 76689^2 .

It is a cyclic number.

It is not a de Polignac number, because 23134025221 - 2¹ = 23134025219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23134005221) 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, 680412490 + ... + 680412523.

It is an arithmetic number, because the mean of its divisors is an integer number (6123712563).

Almost surely, 2^23134025221 is an apocalyptic number.

It is an amenable number.

23134025221 is a deficient number, since it is larger than the sum of its proper divisors (1360825031).

23134025221 is a wasteful number, since it uses less digits than its factorization.

23134025221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360825030.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23134025221 its reverse (12252043132), we get a palindrome (35386068353).

The spelling of 23134025221 in words is "twenty-three billion, one hundred thirty-four million, twenty-five thousand, two hundred twenty-one".