1203123003120 has 480 divisors, whose sum is σ = 4374788745600. Its totient is φ = 295201013760.

The previous prime is 1203123003097. The next prime is 1203123003139. The reversal of 1203123003120 is 213003213021.

1203123003120 is a `hidden beast` number, since 1 + 2 + 0 + 312 + 300 + 31 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1203123003093 and 1203123003102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 124684056 + ... + 124693704.

It is an arithmetic number, because the mean of its divisors is an integer number (9114143220).

Almost surely, 2^{1203123003120} is an apocalyptic number.

1203123003120 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 1203123003120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2187394372800).

1203123003120 is an abundant number, since it is smaller than the sum of its proper divisors (3171665742480).

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

1203123003120 is a wasteful number, since it uses less digits than its factorization.

1203123003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9913 (or 9904 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1203123003120 its reverse (213003213021), we get a palindrome (1416126216141).

The spelling of 1203123003120 in words is "one trillion, two hundred three billion, one hundred twenty-three million, three thousand, one hundred twenty".