131023303 has 4 divisors (see below), whose sum is σ = 133171288. Its totient is φ = 128875320.

The previous prime is 131023231. The next prime is 131023309. The reversal of 131023303 is 303320131.

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 131023303 - 2¹³ = 131015111 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 (131023309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073901 + ... + 1074022.

It is an arithmetic number, because the mean of its divisors is an integer number (33292822).

Almost surely, 2^131023303 is an apocalyptic number.

131023303 is a deficient number, since it is larger than the sum of its proper divisors (2147985).

131023303 is an equidigital number, since it uses as much as digits as its factorization.

131023303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147984.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 131023303 is about 11446.5410932735. The cubic root of 131023303 is about 507.9054205782.

Adding to 131023303 its reverse (303320131), we get a palindrome (434343434).

The spelling of 131023303 in words is "one hundred thirty-one million, twenty-three thousand, three hundred three".