343112400543 has 128 divisors (see below), whose sum is σ = 550071336960. Its totient is φ = 188452396800.

The previous prime is 343112400539. The next prime is 343112400559. The reversal of 343112400543 is 345004211343.

It is not a de Polignac number, because 343112400543 - 2² = 343112400539 is a prime.

It is a super-2 number, since 2×343112400543² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 343112400543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343112400593) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 750792771 + ... + 750793227.

It is an arithmetic number, because the mean of its divisors is an integer number (4297432320).

Almost surely, 2^343112400543 is an apocalyptic number.

343112400543 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

343112400543 is a deficient number, since it is larger than the sum of its proper divisors (206958936417).

343112400543 is a wasteful number, since it uses less digits than its factorization.

343112400543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 343112400543 its reverse (345004211343), we get a palindrome (688116611886).

The spelling of 343112400543 in words is "three hundred forty-three billion, one hundred twelve million, four hundred thousand, five hundred forty-three".