231331423514 has 4 divisors (see below), whose sum is σ = 346997135274. Its totient is φ = 115665711756.

The previous prime is 231331423513. The next prime is 231331423523. The reversal of 231331423514 is 415324133132.

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

It can be written as a sum of positive squares in only one way, i.e., 226116417289 + 5215006225 = 475517^2 + 72215^2 .

It is not an unprimeable number, because it can be changed into a prime (231331423513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57832855877 + ... + 57832855880.

Almost surely, 2^231331423514 is an apocalyptic number.

231331423514 is a deficient number, since it is larger than the sum of its proper divisors (115665711760).

231331423514 is a wasteful number, since it uses less digits than its factorization.

231331423514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115665711759.

The product of its digits is 25920, while the sum is 32.

Adding to 231331423514 its reverse (415324133132), we get a palindrome (646655556646).

The spelling of 231331423514 in words is "two hundred thirty-one billion, three hundred thirty-one million, four hundred twenty-three thousand, five hundred fourteen".