331231616234 has 4 divisors (see below), whose sum is σ = 496847424354. Its totient is φ = 165615808116.

The previous prime is 331231616207. The next prime is 331231616267. The reversal of 331231616234 is 432616132133.

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., 257409096025 + 73822520209 = 507355^2 + 271703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331231616194 and 331231616203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82807904057 + ... + 82807904060.

Almost surely, 2^331231616234 is an apocalyptic number.

331231616234 is a deficient number, since it is larger than the sum of its proper divisors (165615808120).

331231616234 is a wasteful number, since it uses less digits than its factorization.

331231616234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165615808119.

The product of its digits is 46656, while the sum is 35.

Adding to 331231616234 its reverse (432616132133), we get a palindrome (763847748367).

The spelling of 331231616234 in words is "three hundred thirty-one billion, two hundred thirty-one million, six hundred sixteen thousand, two hundred thirty-four".