1121131313120 has 144 divisors (see below), whose sum is σ = 3318117784128. Its totient is φ = 354819548160.

The previous prime is 1121131313117. The next prime is 1121131313147. The reversal of 1121131313120 is 213131311211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1121131313092 and 1121131313101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5398136 + ... + 5601975.

It is an arithmetic number, because the mean of its divisors is an integer number (23042484612).

Almost surely, 2^{1121131313120} is an apocalyptic number.

1121131313120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121131313120 is an abundant number, since it is smaller than the sum of its proper divisors (2196986471008).

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

1121131313120 is a wasteful number, since it uses less digits than its factorization.

1121131313120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000153 (or 11000138 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1121131313120 its reverse (213131311211), we get a palindrome (1334262624331).

The spelling of 1121131313120 in words is "one trillion, one hundred twenty-one billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred twenty".