21332032097 has 2 divisors, whose sum is σ = 21332032098. Its totient is φ = 21332032096.

The previous prime is 21332032093. The next prime is 21332032103. The reversal of 21332032097 is 79023023312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21201980881 + 130051216 = 145609^2 + 11404^2 .

It is a cyclic number.

It is not a de Polignac number, because 21332032097 - 2² = 21332032093 is a prime.

It is not a weakly prime, because it can be changed into another prime (21332032093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666016048 + 10666016049.

It is an arithmetic number, because the mean of its divisors is an integer number (10666016049).

Almost surely, 2^21332032097 is an apocalyptic number.

It is an amenable number.

21332032097 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332032097 is an equidigital number, since it uses as much as digits as its factorization.

21332032097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The spelling of 21332032097 in words is "twenty-one billion, three hundred thirty-two million, thirty-two thousand, ninety-seven".