131000031303 has 4 divisors (see below), whose sum is σ = 174666708408. Its totient is φ = 87333354200.

The previous prime is 131000031301. The next prime is 131000031403. The reversal of 131000031303 is 303130000131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131000031303 - 2¹ = 131000031301 is a prime.

It is a super-2 number, since 2×131000031303² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000031301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21833338548 + ... + 21833338553.

It is an arithmetic number, because the mean of its divisors is an integer number (43666677102).

Almost surely, 2^131000031303 is an apocalyptic number.

131000031303 is a deficient number, since it is larger than the sum of its proper divisors (43666677105).

131000031303 is an equidigital number, since it uses as much as digits as its factorization.

131000031303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43666677104.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 131000031303 its reverse (303130000131), we get a palindrome (434130031434).

The spelling of 131000031303 in words is "one hundred thirty-one billion, thirty-one thousand, three hundred three".