1203113120 has 192 divisors, whose sum is σ = 3331238400. Its totient is φ = 405749760.

The previous prime is 1203113113. The next prime is 1203113123. The reversal of 1203113120 is 213113021.

It is a super-2 number, since 2×1203113120² = 2894962359032268800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1203113095 and 1203113104.

It is not an unprimeable number, because it can be changed into a prime (1203113123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2363426 + ... + 2363934.

It is an arithmetic number, because the mean of its divisors is an integer number (17350200).

Almost surely, 2^1203113120 is an apocalyptic number.

1203113120 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 1203113120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665619200).

1203113120 is an abundant number, since it is smaller than the sum of its proper divisors (2128125280).

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

1203113120 is a wasteful number, since it uses less digits than its factorization.

1203113120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1203113120 is about 34685.9210631634. The cubic root of 1203113120 is about 1063.5767155689.

Adding to 1203113120 its reverse (213113021), we get a palindrome (1416226141).

Subtracting from 1203113120 its reverse (213113021), we obtain a palindrome (990000099).

The spelling of 1203113120 in words is "one billion, two hundred three million, one hundred thirteen thousand, one hundred twenty".