543312121963 has 8 divisors (see below), whose sum is σ = 588567526400. Its totient is φ = 501518879784.

The previous prime is 543312121939. The next prime is 543312121987. The reversal of 543312121963 is 369121213345.

It is an interprime number because it is at equal distance from previous prime (543312121939) and next prime (543312121987).

It is a de Polignac number, because none of the positive numbers 2^k-543312121963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543312128963) 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, 123646443 + ... + 123650836.

It is an arithmetic number, because the mean of its divisors is an integer number (73570940800).

Almost surely, 2^543312121963 is an apocalyptic number.

543312121963 is a deficient number, since it is larger than the sum of its proper divisors (45255404437).

543312121963 is an equidigital number, since it uses as much as digits as its factorization.

543312121963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247297318 (or 247297292 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The spelling of 543312121963 in words is "five hundred forty-three billion, three hundred twelve million, one hundred twenty-one thousand, nine hundred sixty-three".