231444044331 has 16 divisors (see below), whose sum is σ = 316891669920. Its totient is φ = 150164628480.

The previous prime is 231444044311. The next prime is 231444044339. The reversal of 231444044331 is 133440444132.

It is not a de Polignac number, because 231444044331 - 2⁹ = 231444043819 is a prime.

It is a super-2 number, since 2×231444044331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231444044292 and 231444044301.

It is not an unprimeable number, because it can be changed into a prime (231444044339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2250010 + ... + 2350623.

It is an arithmetic number, because the mean of its divisors is an integer number (19805729370).

Almost surely, 2^231444044331 is an apocalyptic number.

231444044331 is a deficient number, since it is larger than the sum of its proper divisors (85447625589).

231444044331 is a wasteful number, since it uses less digits than its factorization.

231444044331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601086.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 231444044331 its reverse (133440444132), we get a palindrome (364884488463).

The spelling of 231444044331 in words is "two hundred thirty-one billion, four hundred forty-four million, forty-four thousand, three hundred thirty-one".