20882534381 has 2 divisors, whose sum is σ = 20882534382. Its totient is φ = 20882534380.

The previous prime is 20882534311. The next prime is 20882534423. The reversal of 20882534381 is 18343528802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20176782025 + 705752356 = 142045^2 + 26566^2 .

It is a cyclic number.

It is not a de Polignac number, because 20882534381 - 2²⁶ = 20815425517 is a prime.

It is a super-2 number, since 2×20882534381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20882534311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10441267190 + 10441267191.

It is an arithmetic number, because the mean of its divisors is an integer number (10441267191).

Almost surely, 2^20882534381 is an apocalyptic number.

It is an amenable number.

20882534381 is a deficient number, since it is larger than the sum of its proper divisors (1).

20882534381 is an equidigital number, since it uses as much as digits as its factorization.

20882534381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 20882534381 in words is "twenty billion, eight hundred eighty-two million, five hundred thirty-four thousand, three hundred eighty-one".