21202032912337 has 2 divisors, whose sum is σ = 21202032912338. Its totient is φ = 21202032912336.

The previous prime is 21202032912317. The next prime is 21202032912383. The reversal of 21202032912337 is 73321923020212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14541111984961 + 6660920927376 = 3813281^2 + 2580876^2 .

It is a cyclic number.

It is not a de Polignac number, because 21202032912337 - 2²⁷ = 21201898694609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21202032912296 and 21202032912305.

It is not a weakly prime, because it can be changed into another prime (21202032912317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601016456168 + 10601016456169.

It is an arithmetic number, because the mean of its divisors is an integer number (10601016456169).

Almost surely, 2^{21202032912337} is an apocalyptic number.

It is an amenable number.

21202032912337 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202032912337 is an equidigital number, since it uses as much as digits as its factorization.

21202032912337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

Adding to 21202032912337 its reverse (73321923020212), we get a palindrome (94523955932549).

The spelling of 21202032912337 in words is "twenty-one trillion, two hundred two billion, thirty-two million, nine hundred twelve thousand, three hundred thirty-seven".