20324202122437 has 2 divisors, whose sum is σ = 20324202122438. Its totient is φ = 20324202122436.

The previous prime is 20324202122369. The next prime is 20324202122461. The reversal of 20324202122437 is 73422120242302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20302603117281 + 21599005156 = 4505841^2 + 146966^2 .

It is a cyclic number.

It is not a de Polignac number, because 20324202122437 - 2³⁹ = 19774446308549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324202122737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162101061218 + 10162101061219.

It is an arithmetic number, because the mean of its divisors is an integer number (10162101061219).

Almost surely, 2^{20324202122437} is an apocalyptic number.

It is an amenable number.

20324202122437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324202122437 is an equidigital number, since it uses as much as digits as its factorization.

20324202122437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 34.

Adding to 20324202122437 its reverse (73422120242302), we get a palindrome (93746322364739).

The spelling of 20324202122437 in words is "twenty trillion, three hundred twenty-four billion, two hundred two million, one hundred twenty-two thousand, four hundred thirty-seven".