231001131303 has 24 divisors (see below), whose sum is σ = 342775135248. Its totient is φ = 149799756672.

The previous prime is 231001131299. The next prime is 231001131311. The reversal of 231001131303 is 303131100132.

It is a happy number.

231001131303 is a `hidden beast` number, since 231 + 0 + 0 + 1 + 131 + 303 = 666.

It is not a de Polignac number, because 231001131303 - 2² = 231001131299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231001131313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1226475 + ... + 1402227.

It is an arithmetic number, because the mean of its divisors is an integer number (14282297302).

Almost surely, 2^231001131303 is an apocalyptic number.

231001131303 is a deficient number, since it is larger than the sum of its proper divisors (111774003945).

231001131303 is a wasteful number, since it uses less digits than its factorization.

231001131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179743 (or 179740 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 231001131303 its reverse (303131100132), we get a palindrome (534132231435).

The spelling of 231001131303 in words is "two hundred thirty-one billion, one million, one hundred thirty-one thousand, three hundred three".