21332555341 has 2 divisors, whose sum is σ = 21332555342. Its totient is φ = 21332555340.

The previous prime is 21332555339. The next prime is 21332555359. The reversal of 21332555341 is 14355523312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13168710025 + 8163845316 = 114755^2 + 90354^2 .

It is a cyclic number.

It is not a de Polignac number, because 21332555341 - 2¹ = 21332555339 is a prime.

Together with 21332555339, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21332555297 and 21332555306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21332555141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666277670 + 10666277671.

It is an arithmetic number, because the mean of its divisors is an integer number (10666277671).

Almost surely, 2^21332555341 is an apocalyptic number.

It is an amenable number.

21332555341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332555341 is an equidigital number, since it uses as much as digits as its factorization.

21332555341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 34.

The spelling of 21332555341 in words is "twenty-one billion, three hundred thirty-two million, five hundred fifty-five thousand, three hundred forty-one".