20402443213283 has 2 divisors, whose sum is σ = 20402443213284. Its totient is φ = 20402443213282.

The previous prime is 20402443213219. The next prime is 20402443213393. The reversal of 20402443213283 is 38231234420402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20402443213283 - 2⁶ = 20402443213219 is a prime.

It is not a weakly prime, because it can be changed into another prime (20402443213213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201221606641 + 10201221606642.

It is an arithmetic number, because the mean of its divisors is an integer number (10201221606642).

Almost surely, 2^{20402443213283} is an apocalyptic number.

20402443213283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20402443213283 is an equidigital number, since it uses as much as digits as its factorization.

20402443213283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 20402443213283 its reverse (38231234420402), we get a palindrome (58633677633685).

The spelling of 20402443213283 in words is "twenty trillion, four hundred two billion, four hundred forty-three million, two hundred thirteen thousand, two hundred eighty-three".