511020601339 has 2 divisors, whose sum is σ = 511020601340. Its totient is φ = 511020601338.

The previous prime is 511020601331. The next prime is 511020601379. The reversal of 511020601339 is 933106020115.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511020601339 - 2³ = 511020601331 is a prime.

It is a super-2 number, since 2×511020601339² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511020601339.

It is not a weakly prime, because it can be changed into another prime (511020601331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255510300669 + 255510300670.

It is an arithmetic number, because the mean of its divisors is an integer number (255510300670).

Almost surely, 2^511020601339 is an apocalyptic number.

511020601339 is a deficient number, since it is larger than the sum of its proper divisors (1).

511020601339 is an equidigital number, since it uses as much as digits as its factorization.

511020601339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 511020601339 in words is "five hundred eleven billion, twenty million, six hundred one thousand, three hundred thirty-nine".