20402132241 has 8 divisors (see below), whose sum is σ = 27203720544. Its totient is φ = 13600982720.

The previous prime is 20402132183. The next prime is 20402132251. The reversal of 20402132241 is 14223120402.

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

It is a cyclic number.

It is not a de Polignac number, because 20402132241 - 2¹¹ = 20402130193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20402132251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21070 + ... + 203096.

It is an arithmetic number, because the mean of its divisors is an integer number (3400465068).

Almost surely, 2^20402132241 is an apocalyptic number.

It is an amenable number.

20402132241 is a deficient number, since it is larger than the sum of its proper divisors (6801588303).

20402132241 is a wasteful number, since it uses less digits than its factorization.

20402132241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219391.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20402132241 its reverse (14223120402), we get a palindrome (34625252643).

The spelling of 20402132241 in words is "twenty billion, four hundred two million, one hundred thirty-two thousand, two hundred forty-one".