20402132183 has 2 divisors, whose sum is σ = 20402132184. Its totient is φ = 20402132182.

The previous prime is 20402132147. The next prime is 20402132251. The reversal of 20402132183 is 38123120402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20402132183 - 2²⁰ = 20401083607 is a prime.

It is a super-3 number, since 3×20402132183³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20402132383) 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 as a sum of consecutive naturals, namely, 10201066091 + 10201066092.

It is an arithmetic number, because the mean of its divisors is an integer number (10201066092).

Almost surely, 2^20402132183 is an apocalyptic number.

20402132183 is a deficient number, since it is larger than the sum of its proper divisors (1).

20402132183 is an equidigital number, since it uses as much as digits as its factorization.

20402132183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20402132183 its reverse (38123120402), we get a palindrome (58525252585).

The spelling of 20402132183 in words is "twenty billion, four hundred two million, one hundred thirty-two thousand, one hundred eighty-three".