20042362913 has 2 divisors, whose sum is σ = 20042362914. Its totient is φ = 20042362912.

The previous prime is 20042362903. The next prime is 20042362969. The reversal of 20042362913 is 31926324002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16062267169 + 3980095744 = 126737^2 + 63088^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042362913 - 2⁴ = 20042362897 is a prime.

It is a super-3 number, since 3×20042362913³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20042362913.

It is not a weakly prime, because it can be changed into another prime (20042362903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021181456 + 10021181457.

It is an arithmetic number, because the mean of its divisors is an integer number (10021181457).

Almost surely, 2^20042362913 is an apocalyptic number.

It is an amenable number.

20042362913 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042362913 is an equidigital number, since it uses as much as digits as its factorization.

20042362913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 20042362913 its reverse (31926324002), we get a palindrome (51968686915).

The spelling of 20042362913 in words is "twenty billion, forty-two million, three hundred sixty-two thousand, nine hundred thirteen".