1123402144420 has 48 divisors (see below), whose sum is σ = 2453272012800. Its totient is φ = 431594065280.

The previous prime is 1123402144399. The next prime is 1123402144427. The reversal of 1123402144420 is 244412043211.

It is not an unprimeable number, because it can be changed into a prime (1123402144427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4959640 + ... + 5181199.

It is an arithmetic number, because the mean of its divisors is an integer number (51109833600).

Almost surely, 2^{1123402144420} is an apocalyptic number.

1123402144420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123402144420 is an abundant number, since it is smaller than the sum of its proper divisors (1329869868380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123402144420 is a wasteful number, since it uses less digits than its factorization.

1123402144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141068 (or 10141066 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1123402144420 its reverse (244412043211), we get a palindrome (1367814187631).

The spelling of 1123402144420 in words is "one trillion, one hundred twenty-three billion, four hundred two million, one hundred forty-four thousand, four hundred twenty".