1123003020120 has 32 divisors (see below), whose sum is σ = 3369009060720. Its totient is φ = 299467472000.

The previous prime is 1123003020119. The next prime is 1123003020121. The reversal of 1123003020120 is 210203003211.

It is an interprime number because it is at equal distance from previous prime (1123003020119) and next prime (1123003020121).

It is a super-2 number, since 2×1123003020120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1123003020120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123003020121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4679179131 + ... + 4679179370.

Almost surely, 2^{1123003020120} is an apocalyptic number.

1123003020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123003020120 is an abundant number, since it is smaller than the sum of its proper divisors (2246006040600).

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

1123003020120 is a wasteful number, since it uses less digits than its factorization.

1123003020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358358515 (or 9358358511 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1123003020120 its reverse (210203003211), we get a palindrome (1333206023331).

The spelling of 1123003020120 in words is "one trillion, one hundred twenty-three billion, three million, twenty thousand, one hundred twenty".