231444407311 has 8 divisors (see below), whose sum is σ = 255044284880. Its totient is φ = 208672595712.

The previous prime is 231444407297. The next prime is 231444407333. The reversal of 231444407311 is 113704444132.

231444407311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231444407311 - 2¹⁵ = 231444374543 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 (231444437311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207015906 + ... + 207017023.

It is an arithmetic number, because the mean of its divisors is an integer number (31880535610).

Almost surely, 2^231444407311 is an apocalyptic number.

231444407311 is a deficient number, since it is larger than the sum of its proper divisors (23599877569).

231444407311 is a wasteful number, since it uses less digits than its factorization.

231444407311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414032985.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 231444407311 in words is "two hundred thirty-one billion, four hundred forty-four million, four hundred seven thousand, three hundred eleven".