343143400523 has 16 divisors (see below), whose sum is σ = 427841305344. Its totient is φ = 267368120160.

The previous prime is 343143400519. The next prime is 343143400541. The reversal of 343143400523 is 325004341343.

It is a cyclic number.

It is not a de Polignac number, because 343143400523 - 2² = 343143400519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343143400523.

It is not an unprimeable number, because it can be changed into a prime (343143400573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218236 + ... + 1473222.

It is an arithmetic number, because the mean of its divisors is an integer number (26740081584).

Almost surely, 2^343143400523 is an apocalyptic number.

343143400523 is a deficient number, since it is larger than the sum of its proper divisors (84697904821).

343143400523 is a wasteful number, since it uses less digits than its factorization.

343143400523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272482.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 343143400523 its reverse (325004341343), we get a palindrome (668147741866).

The spelling of 343143400523 in words is "three hundred forty-three billion, one hundred forty-three million, four hundred thousand, five hundred twenty-three".