231320131303 has 4 divisors (see below), whose sum is σ = 231322007440. Its totient is φ = 231318255168.

The previous prime is 231320131267. The next prime is 231320131313. The reversal of 231320131303 is 303131023132.

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 231320131303 - 2⁹ = 231320130791 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 (231320131313) 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, 739050 + ... + 1004407.

It is an arithmetic number, because the mean of its divisors is an integer number (57830501860).

Almost surely, 2^231320131303 is an apocalyptic number.

231320131303 is a deficient number, since it is larger than the sum of its proper divisors (1876137).

231320131303 is a wasteful number, since it uses less digits than its factorization.

231320131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876136.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231320131303 its reverse (303131023132), we get a palindrome (534451154435).

The spelling of 231320131303 in words is "two hundred thirty-one billion, three hundred twenty million, one hundred thirty-one thousand, three hundred three".