1123023030320 has 120 divisors (see below), whose sum is σ = 2850709574160. Its totient is φ = 410891604480.

The previous prime is 1123023030277. The next prime is 1123023030373. The reversal of 1123023030320 is 230303203211.

It is a super-2 number, since 2×1123023030320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1123023030292 and 1123023030301.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167075 + ... + 1507965.

It is an arithmetic number, because the mean of its divisors is an integer number (23755913118).

Almost surely, 2^{1123023030320} is an apocalyptic number.

1123023030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123023030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425354787080).

1123023030320 is an abundant number, since it is smaller than the sum of its proper divisors (1727686543840).

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

1123023030320 is a wasteful number, since it uses less digits than its factorization.

1123023030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340971 (or 1340946 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1123023030320 its reverse (230303203211), we get a palindrome (1353326233531).

The spelling of 1123023030320 in words is "one trillion, one hundred twenty-three billion, twenty-three million, thirty thousand, three hundred twenty".