21310201252337 has 2 divisors, whose sum is σ = 21310201252338. Its totient is φ = 21310201252336.

The previous prime is 21310201252321. The next prime is 21310201252349. The reversal of 21310201252337 is 73325210201312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14258712197041 + 7051489055296 = 3776071^2 + 2655464^2 .

It is a cyclic number.

It is not a de Polignac number, because 21310201252337 - 2⁴ = 21310201252321 is a prime.

It is not a weakly prime, because it can be changed into another prime (21310201752337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655100626168 + 10655100626169.

It is an arithmetic number, because the mean of its divisors is an integer number (10655100626169).

Almost surely, 2^{21310201252337} is an apocalyptic number.

It is an amenable number.

21310201252337 is a deficient number, since it is larger than the sum of its proper divisors (1).

21310201252337 is an equidigital number, since it uses as much as digits as its factorization.

21310201252337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 21310201252337 its reverse (73325210201312), we get a palindrome (94635411453649).

The spelling of 21310201252337 in words is "twenty-one trillion, three hundred ten billion, two hundred one million, two hundred fifty-two thousand, three hundred thirty-seven".