2543321242 has 16 divisors (see below), whose sum is σ = 4756341312. Its totient is φ = 990904320.

The previous prime is 2543321219. The next prime is 2543321269. The reversal of 2543321242 is 2421233452.

It is a self number, because there is not a number n which added to its sum of digits gives 2543321242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8257383 + ... + 8257690.

It is an arithmetic number, because the mean of its divisors is an integer number (297271332).

Almost surely, 2^2543321242 is an apocalyptic number.

2543321242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2543321242 is a deficient number, since it is larger than the sum of its proper divisors (2213020070).

2543321242 is a wasteful number, since it uses less digits than its factorization.

2543321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16515093.

The product of its digits is 11520, while the sum is 28.

The square root of 2543321242 is about 50431.3517764495. The cubic root of 2543321242 is about 1365.0034200472.

Adding to 2543321242 its reverse (2421233452), we get a palindrome (4964554694).

The spelling of 2543321242 in words is "two billion, five hundred forty-three million, three hundred twenty-one thousand, two hundred forty-two".