402111343 has 4 divisors (see below), whose sum is σ = 407201440. Its totient is φ = 397021248.

The previous prime is 402111299. The next prime is 402111349. The reversal of 402111343 is 343111204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402111343 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 402111343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402111349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544930 + ... + 2545087.

It is an arithmetic number, because the mean of its divisors is an integer number (101800360).

Almost surely, 2^402111343 is an apocalyptic number.

402111343 is a deficient number, since it is larger than the sum of its proper divisors (5090097).

402111343 is an equidigital number, since it uses as much as digits as its factorization.

402111343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090096.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 402111343 is about 20052.7141055768. The cubic root of 402111343 is about 738.1004011679.

Adding to 402111343 its reverse (343111204), we get a palindrome (745222547).

The spelling of 402111343 in words is "four hundred two million, one hundred eleven thousand, three hundred forty-three".