20402214013 has 2 divisors, whose sum is σ = 20402214014. Its totient is φ = 20402214012.

The previous prime is 20402213989. The next prime is 20402214023. The reversal of 20402214013 is 31041220402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10216762084 + 10185451929 = 101078^2 + 100923^2 .

It is a cyclic number.

It is not a de Polignac number, because 20402214013 - 2²⁹ = 19865343101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20402214023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201107006 + 10201107007.

It is an arithmetic number, because the mean of its divisors is an integer number (10201107007).

Almost surely, 2^20402214013 is an apocalyptic number.

It is an amenable number.

20402214013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20402214013 is an equidigital number, since it uses as much as digits as its factorization.

20402214013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20402214013 its reverse (31041220402), we get a palindrome (51443434415).

The spelling of 20402214013 in words is "twenty billion, four hundred two million, two hundred fourteen thousand, thirteen".