1123421203234 has 12 divisors (see below), whose sum is σ = 1852252314822. Its totient is φ = 510646001360.

The previous prime is 1123421203217. The next prime is 1123421203253. The reversal of 1123421203234 is 4323021243211.

It can be written as a sum of positive squares in only one way, i.e., 941779025209 + 181642178025 = 970453^2 + 426195^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2321117947 + ... + 2321118430.

Almost surely, 2^{1123421203234} is an apocalyptic number.

1123421203234 is a deficient number, since it is larger than the sum of its proper divisors (728831111588).

1123421203234 is a wasteful number, since it uses less digits than its factorization.

1123421203234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642236401 (or 4642236390 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1123421203234 its reverse (4323021243211), we get a palindrome (5446442446445).

The spelling of 1123421203234 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-one million, two hundred three thousand, two hundred thirty-four".