131231303 has 8 divisors (see below), whose sum is σ = 150986400. Its totient is φ = 111728160.

The previous prime is 131231299. The next prime is 131231323. The reversal of 131231303 is 303132131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131231303 - 2² = 131231299 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 (131231323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61868 + ... + 63953.

It is an arithmetic number, because the mean of its divisors is an integer number (18873300).

Almost surely, 2^131231303 is an apocalyptic number.

131231303 is a deficient number, since it is larger than the sum of its proper divisors (19755097).

131231303 is a wasteful number, since it uses less digits than its factorization.

131231303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125977.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 131231303 is about 11455.6232043482. The cubic root of 131231303 is about 508.1740457533.

Adding to 131231303 its reverse (303132131), we get a palindrome (434363434).

The spelling of 131231303 in words is "one hundred thirty-one million, two hundred thirty-one thousand, three hundred three".