543213312345 has 24 divisors (see below), whose sum is σ = 1027166991552. Its totient is φ = 263376151200.

The previous prime is 543213312331. The next prime is 543213312353.

543213312345 is a `hidden beast` number, since 543 + 21 + 3 + 31 + 23 + 45 = 666.

543213312345 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 543213312345 - 2⁶ = 543213312281 is a prime.

It is a super-4 number, since 4×543213312345⁴ (a number of 48 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548699821 + ... + 548700810.

It is an arithmetic number, because the mean of its divisors is an integer number (42798624648).

Almost surely, 2^543213312345 is an apocalyptic number.

543213312345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

543213312345 is a deficient number, since it is larger than the sum of its proper divisors (483953679207).

543213312345 is a wasteful number, since it uses less digits than its factorization.

543213312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097400653 (or 1097400650 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

It can be divided in two parts, 543213 and 312345, that added together give a palindrome (855558).

The spelling of 543213312345 in words is "five hundred forty-three billion, two hundred thirteen million, three hundred twelve thousand, three hundred forty-five".