1233443421442 has 4 divisors (see below), whose sum is σ = 1850165132166. Its totient is φ = 616721710720.

The previous prime is 1233443421407. The next prime is 1233443421473. The reversal of 1233443421442 is 2441243443321.

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

It can be written as a sum of positive squares in only one way, i.e., 989131691601 + 244311729841 = 994551^2 + 494279^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 308360855359 + ... + 308360855362.

Almost surely, 2^{1233443421442} is an apocalyptic number.

1233443421442 is a deficient number, since it is larger than the sum of its proper divisors (616721710724).

1233443421442 is an equidigital number, since it uses as much as digits as its factorization.

1233443421442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616721710723.

The product of its digits is 221184, while the sum is 37.

Adding to 1233443421442 its reverse (2441243443321), we get a palindrome (3674686864763).

The spelling of 1233443421442 in words is "one trillion, two hundred thirty-three billion, four hundred forty-three million, four hundred twenty-one thousand, four hundred forty-two".