1203023120 has 120 divisors (see below), whose sum is σ = 3062194632. Its totient is φ = 439296000.

The previous prime is 1203023111. The next prime is 1203023161. The reversal of 1203023120 is 213203021.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 544382224 + 658640896 = 23332^2 + 25664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1203023095 and 1203023104.

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, 1365080 + ... + 1365960.

Almost surely, 2^1203023120 is an apocalyptic number.

1203023120 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 1203023120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531097316).

1203023120 is an abundant number, since it is smaller than the sum of its proper divisors (1859171512).

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

1203023120 is a wasteful number, since it uses less digits than its factorization.

1203023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1203023120 is about 34684.6236825484. The cubic root of 1203023120 is about 1063.5501942913.

Adding to 1203023120 its reverse (213203021), we get a palindrome (1416226141).

The spelling of 1203023120 in words is "one billion, two hundred three million, twenty-three thousand, one hundred twenty".