131302440503 has 16 divisors (see below), whose sum is σ = 147756026880. Its totient is φ = 115771158624.

The previous prime is 131302440431. The next prime is 131302440539. The reversal of 131302440503 is 305044203131.

It is a cyclic number.

It is not a de Polignac number, because 131302440503 - 2¹⁶ = 131302374967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302440593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90401 + ... + 520362.

It is an arithmetic number, because the mean of its divisors is an integer number (9234751680).

Almost surely, 2^131302440503 is an apocalyptic number.

131302440503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131302440503 is a deficient number, since it is larger than the sum of its proper divisors (16453586377).

131302440503 is a wasteful number, since it uses less digits than its factorization.

131302440503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611518.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 131302440503 its reverse (305044203131), we get a palindrome (436346643634).

The spelling of 131302440503 in words is "one hundred thirty-one billion, three hundred two million, four hundred forty thousand, five hundred three".