1123304123020 has 24 divisors (see below), whose sum is σ = 2362006231200. Its totient is φ = 448737349632.

The previous prime is 1123304123009. The next prime is 1123304123021. The reversal of 1123304123020 is 203214033211.

It is a junction number, because it is equal to n+sod(n) for n = 1123304122982 and 1123304123000.

It is not an unprimeable number, because it can be changed into a prime (1123304123021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36502960 + ... + 36533719.

It is an arithmetic number, because the mean of its divisors is an integer number (98416926300).

Almost surely, 2^{1123304123020} is an apocalyptic number.

1123304123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123304123020 is an abundant number, since it is smaller than the sum of its proper divisors (1238702108180).

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

1123304123020 is a wasteful number, since it uses less digits than its factorization.

1123304123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73037457 (or 73037455 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1123304123020 its reverse (203214033211), we get a palindrome (1326518156231).

The spelling of 1123304123020 in words is "one trillion, one hundred twenty-three billion, three hundred four million, one hundred twenty-three thousand, twenty".