1331131110120 has 96 divisors (see below), whose sum is σ = 4944201275520. Its totient is φ = 304258538880.

The previous prime is 1331131110107. The next prime is 1331131110121. The reversal of 1331131110120 is 210111311331.

1331131110120 is a `hidden beast` number, since 1 + 331 + 1 + 311 + 1 + 0 + 1 + 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 = 1331131110093 and 1331131110102.

It is not an unprimeable number, because it can be changed into a prime (1331131110121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264110796 + ... + 264115835.

It is an arithmetic number, because the mean of its divisors is an integer number (51502096620).

Almost surely, 2^{1331131110120} is an apocalyptic number.

1331131110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331131110120 is an abundant number, since it is smaller than the sum of its proper divisors (3613070165400).

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

1331131110120 is a wasteful number, since it uses less digits than its factorization.

1331131110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528226655 (or 528226648 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1331131110120 its reverse (210111311331), we get a palindrome (1541242421451).

The spelling of 1331131110120 in words is "one trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred ten thousand, one hundred twenty".