231333140999 has 4 divisors (see below), whose sum is σ = 231545960064. Its totient is φ = 231120321936.

The previous prime is 231333140977. The next prime is 231333141037. The reversal of 231333140999 is 999041333132.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231333140999 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 (231333110999) 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, 106407902 + ... + 106410075.

It is an arithmetic number, because the mean of its divisors is an integer number (57886490016).

Almost surely, 2^231333140999 is an apocalyptic number.

231333140999 is a deficient number, since it is larger than the sum of its proper divisors (212819065).

231333140999 is a wasteful number, since it uses less digits than its factorization.

231333140999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212819064.

The product of its (nonzero) digits is 472392, while the sum is 47.

The spelling of 231333140999 in words is "two hundred thirty-one billion, three hundred thirty-three million, one hundred forty thousand, nine hundred ninety-nine".