1123421033144 has 32 divisors (see below), whose sum is σ = 2128333054320. Its totient is φ = 555876577536.

The previous prime is 1123421033129. The next prime is 1123421033173. The reversal of 1123421033144 is 4413301243211.

It is a congruent number.

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, 127202 + ... + 1504334.

Almost surely, 2^{1123421033144} is an apocalyptic number.

It is an amenable number.

1123421033144 is a deficient number, since it is larger than the sum of its proper divisors (1004912021176).

1123421033144 is a wasteful number, since it uses less digits than its factorization.

1123421033144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378199 (or 1378195 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1123421033144 its reverse (4413301243211), we get a palindrome (5536722276355).

The spelling of 1123421033144 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-one million, thirty-three thousand, one hundred forty-four".