402543204043 has 16 divisors (see below), whose sum is σ = 408116288160. Its totient is φ = 396988171776.

The previous prime is 402543203981. The next prime is 402543204139. The reversal of 402543204043 is 340402345204.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402543204043 is a prime.

It is a super-2 number, since 2×402543204043² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402543203996 and 402543204014.

It is not an unprimeable number, because it can be changed into a prime (402543202043) 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, 226528771 + ... + 226530547.

It is an arithmetic number, because the mean of its divisors is an integer number (25507268010).

Almost surely, 2^402543204043 is an apocalyptic number.

402543204043 is a deficient number, since it is larger than the sum of its proper divisors (5573084117).

402543204043 is a wasteful number, since it uses less digits than its factorization.

402543204043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 402543204043 its reverse (340402345204), we get a palindrome (742945549247).

The spelling of 402543204043 in words is "four hundred two billion, five hundred forty-three million, two hundred four thousand, forty-three".