21532424100541 has 2 divisors, whose sum is σ = 21532424100542. Its totient is φ = 21532424100540.

The previous prime is 21532424100521. The next prime is 21532424100571. The reversal of 21532424100541 is 14500142423512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17913031999641 + 3619392100900 = 4232379^2 + 1902470^2 .

It is a cyclic number.

It is not a de Polignac number, because 21532424100541 - 2⁹ = 21532424100029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21532424100497 and 21532424100506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21532424100521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10766212050270 + 10766212050271.

It is an arithmetic number, because the mean of its divisors is an integer number (10766212050271).

Almost surely, 2^{21532424100541} is an apocalyptic number.

It is an amenable number.

21532424100541 is a deficient number, since it is larger than the sum of its proper divisors (1).

21532424100541 is an equidigital number, since it uses as much as digits as its factorization.

21532424100541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 21532424100541 in words is "twenty-one trillion, five hundred thirty-two billion, four hundred twenty-four million, one hundred thousand, five hundred forty-one".