503306831011 has 2 divisors, whose sum is σ = 503306831012. Its totient is φ = 503306831010.

The previous prime is 503306830997. The next prime is 503306831081. The reversal of 503306831011 is 110138603305.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503306831011 is a prime.

It is a super-2 number, since 2×503306831011² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (503306831081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251653415505 + 251653415506.

It is an arithmetic number, because the mean of its divisors is an integer number (251653415506).

Almost surely, 2^503306831011 is an apocalyptic number.

503306831011 is a deficient number, since it is larger than the sum of its proper divisors (1).

503306831011 is an equidigital number, since it uses as much as digits as its factorization.

503306831011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 503306831011 in words is "five hundred three billion, three hundred six million, eight hundred thirty-one thousand, eleven".