20132236541 has 4 divisors (see below), whose sum is σ = 20135453184. Its totient is φ = 20129019900.

The previous prime is 20132236511. The next prime is 20132236547. The reversal of 20132236541 is 14563223102.

It is a happy number.

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 20132236541 - 2³⁴ = 2952367357 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 (20132236547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598915 + ... + 1611456.

It is an arithmetic number, because the mean of its divisors is an integer number (5033863296).

Almost surely, 2^20132236541 is an apocalyptic number.

It is an amenable number.

20132236541 is a deficient number, since it is larger than the sum of its proper divisors (3216643).

20132236541 is an equidigital number, since it uses as much as digits as its factorization.

20132236541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216642.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20132236541 its reverse (14563223102), we get a palindrome (34695459643).

The spelling of 20132236541 in words is "twenty billion, one hundred thirty-two million, two hundred thirty-six thousand, five hundred forty-one".