1243140343322 has 16 divisors (see below), whose sum is σ = 1865507365800. Its totient is φ = 621304615680.

The previous prime is 1243140343321. The next prime is 1243140343439. The reversal of 1243140343322 is 2233430413421.

It can be written as a sum of positive squares in 4 ways, for example, as 1224096619321 + 19043724001 = 1106389^2 + 137999^2 .

It is not an unprimeable number, because it can be changed into a prime (1243140343321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73027172 + ... + 73044192.

Almost surely, 2^{1243140343322} is an apocalyptic number.

1243140343322 is a deficient number, since it is larger than the sum of its proper divisors (622367022478).

1243140343322 is a wasteful number, since it uses less digits than its factorization.

1243140343322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30481.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 1243140343322 its reverse (2233430413421), we get a palindrome (3476570756743).

The spelling of 1243140343322 in words is "one trillion, two hundred forty-three billion, one hundred forty million, three hundred forty-three thousand, three hundred twenty-two".