20028341513 has 2 divisors, whose sum is σ = 20028341514. Its totient is φ = 20028341512.

The previous prime is 20028341479. The next prime is 20028341521. The reversal of 20028341513 is 31514382002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15925682809 + 4102658704 = 126197^2 + 64052^2 .

It is a cyclic number.

It is not a de Polignac number, because 20028341513 - 2³⁰ = 18954599689 is a prime.

It is a super-2 number, since 2×20028341513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20028341413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10014170756 + 10014170757.

It is an arithmetic number, because the mean of its divisors is an integer number (10014170757).

Almost surely, 2^20028341513 is an apocalyptic number.

It is an amenable number.

20028341513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20028341513 is an equidigital number, since it uses as much as digits as its factorization.

20028341513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 20028341513 in words is "twenty billion, twenty-eight million, three hundred forty-one thousand, five hundred thirteen".