503440320139 has 2 divisors, whose sum is σ = 503440320140. Its totient is φ = 503440320138.

The previous prime is 503440320101. The next prime is 503440320161. The reversal of 503440320139 is 931023044305.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 503440320139 - 2⁷ = 503440320011 is a prime.

It is not a weakly prime, because it can be changed into another prime (503440320169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251720160069 + 251720160070.

It is an arithmetic number, because the mean of its divisors is an integer number (251720160070).

Almost surely, 2^503440320139 is an apocalyptic number.

503440320139 is a deficient number, since it is larger than the sum of its proper divisors (1).

503440320139 is an equidigital number, since it uses as much as digits as its factorization.

503440320139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 503440320139 in words is "five hundred three billion, four hundred forty million, three hundred twenty thousand, one hundred thirty-nine".