503363266103081 has 2 divisors, whose sum is σ = 503363266103082. Its totient is φ = 503363266103080.

The previous prime is 503363266103077. The next prime is 503363266103219. The reversal of 503363266103081 is 180301662363305.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462266512147456 + 41096753955625 = 21500384^2 + 6410675^2 .

It is a cyclic number.

It is not a de Polignac number, because 503363266103081 - 2² = 503363266103077 is a prime.

It is a super-2 number, since 2×503363266103081² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (503363266103011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251681633051540 + 251681633051541.

It is an arithmetic number, because the mean of its divisors is an integer number (251681633051541).

Almost surely, 2^{503363266103081} is an apocalyptic number.

It is an amenable number.

503363266103081 is a deficient number, since it is larger than the sum of its proper divisors (1).

503363266103081 is an equidigital number, since it uses as much as digits as its factorization.

503363266103081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 503363266103081 in words is "five hundred three trillion, three hundred sixty-three billion, two hundred sixty-six million, one hundred three thousand, eighty-one".