4303312431021 has 12 divisors (see below), whose sum is σ = 6367502947260. Its totient is φ = 2798902393920.

The previous prime is 4303312430999. The next prime is 4303312431053. The reversal of 4303312431021 is 1201342133034.

It is a happy number.

4303312431021 is a `hidden beast` number, since 4 + 30 + 3 + 312 + 4 + 310 + 2 + 1 = 666.

4303312431021 is digitally balanced in base 3, 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 2 ways, for example, as 737899898121 + 3565412532900 = 859011^2 + 1888230^2 .

It is not a de Polignac number, because 4303312431021 - 2²³ = 4303304042413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4303312431721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5831046286 + ... + 5831047023.

It is an arithmetic number, because the mean of its divisors is an integer number (530625245605).

Almost surely, 2^{4303312431021} is an apocalyptic number.

4303312431021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4303312431021 is a deficient number, since it is larger than the sum of its proper divisors (2064190516239).

4303312431021 is a wasteful number, since it uses less digits than its factorization.

4303312431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662093356 (or 11662093353 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 4303312431021 its reverse (1201342133034), we get a palindrome (5504654564055).

The spelling of 4303312431021 in words is "four trillion, three hundred three billion, three hundred twelve million, four hundred thirty-one thousand, twenty-one".