1203111331120 has 40 divisors (see below), whose sum is σ = 2797502176080. Its totient is φ = 481198368000.

The previous prime is 1203111331117. The next prime is 1203111331127. The reversal of 1203111331120 is 211331113021.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1203111331127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124011 + ... + 1556149.

It is an arithmetic number, because the mean of its divisors is an integer number (69937554402).

Almost surely, 2^{1203111331120} is an apocalyptic number.

1203111331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203111331120 is an abundant number, since it is smaller than the sum of its proper divisors (1594390844960).

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

1203111331120 is a wasteful number, since it uses less digits than its factorization.

1203111331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442653 (or 1442647 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1203111331120 its reverse (211331113021), we get a palindrome (1414442444141).

The spelling of 1203111331120 in words is "one trillion, two hundred three billion, one hundred eleven million, three hundred thirty-one thousand, one hundred twenty".