1123430420144 has 80 divisors (see below), whose sum is σ = 2219302955520. Its totient is φ = 550800015360.

The previous prime is 1123430420129. The next prime is 1123430420179. The reversal of 1123430420144 is 4410240343211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216917747 + ... + 216922925.

It is an arithmetic number, because the mean of its divisors is an integer number (27741286944).

Almost surely, 2^{1123430420144} is an apocalyptic number.

It is an amenable number.

1123430420144 is a deficient number, since it is larger than the sum of its proper divisors (1095872535376).

1123430420144 is a wasteful number, since it uses less digits than its factorization.

1123430420144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258 (or 6252 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1123430420144 its reverse (4410240343211), we get a palindrome (5533670763355).

The spelling of 1123430420144 in words is "one trillion, one hundred twenty-three billion, four hundred thirty million, four hundred twenty thousand, one hundred forty-four".