231432553444 has 6 divisors (see below), whose sum is σ = 405006968534. Its totient is φ = 115716276720.

The previous prime is 231432553439. The next prime is 231432553487. The reversal of 231432553444 is 444355234132.

231432553444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 194975233600 + 36457319844 = 441560^2 + 190938^2 .

It is a super-2 number, since 2×231432553444² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231432553397 and 231432553406.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 28929069177 + ... + 28929069184.

Almost surely, 2^231432553444 is an apocalyptic number.

It is an amenable number.

231432553444 is a deficient number, since it is larger than the sum of its proper divisors (173574415090).

231432553444 is a wasteful number, since it uses less digits than its factorization.

231432553444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57858138365 (or 57858138363 counting only the distinct ones).

The product of its digits is 691200, while the sum is 40.

Adding to 231432553444 its reverse (444355234132), we get a palindrome (675787787576).

The spelling of 231432553444 in words is "two hundred thirty-one billion, four hundred thirty-two million, five hundred fifty-three thousand, four hundred forty-four".