231312454033 has 8 divisors (see below), whose sum is σ = 232171417800. Its totient is φ = 230453744640.

The previous prime is 231312454027. The next prime is 231312454057. The reversal of 231312454033 is 330454213132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40678049344 + 190634404689 = 201688^2 + 436617^2 .

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 231312454033 - 2¹³ = 231312445841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231312453986 and 231312454004.

It is not an unprimeable number, because it can be changed into a prime (231312454063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866793 + ... + 1986841.

It is an arithmetic number, because the mean of its divisors is an integer number (29021427225).

Almost surely, 2^231312454033 is an apocalyptic number.

It is an amenable number.

231312454033 is a deficient number, since it is larger than the sum of its proper divisors (858963767).

231312454033 is a wasteful number, since it uses less digits than its factorization.

231312454033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127187.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 231312454033 its reverse (330454213132), we get a palindrome (561766667165).

The spelling of 231312454033 in words is "two hundred thirty-one billion, three hundred twelve million, four hundred fifty-four thousand, thirty-three".