1201031003120 has 160 divisors (see below), whose sum is σ = 3069493539840. Its totient is φ = 434326717440.

The previous prime is 1201031002987. The next prime is 1201031003149. The reversal of 1201031003120 is 213001301021.

It is a junction number, because it is equal to n+sod(n) for n = 1201031003095 and 1201031003104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16592447 + ... + 16664673.

It is an arithmetic number, because the mean of its divisors is an integer number (19184334624).

Almost surely, 2^{1201031003120} is an apocalyptic number.

1201031003120 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 1201031003120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534746769920).

1201031003120 is an abundant number, since it is smaller than the sum of its proper divisors (1868462536720).

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

1201031003120 is a wasteful number, since it uses less digits than its factorization.

1201031003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72583 (or 72577 counting only the distinct ones).

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

Adding to 1201031003120 its reverse (213001301021), we get a palindrome (1414032304141).

The spelling of 1201031003120 in words is "one trillion, two hundred one billion, thirty-one million, three thousand, one hundred twenty".