1331331301128 has 32 divisors (see below), whose sum is σ = 3333378866400. Its totient is φ = 443103685248.

The previous prime is 1331331301103. The next prime is 1331331301141. The reversal of 1331331301128 is 8211031331331.

It is a junction number, because it is equal to n+sod(n) for n = 1331331301095 and 1331331301104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42072301 + ... + 42103932.

It is an arithmetic number, because the mean of its divisors is an integer number (104168089575).

Almost surely, 2^{1331331301128} is an apocalyptic number.

It is an amenable number.

1331331301128 is an abundant number, since it is smaller than the sum of its proper divisors (2002047565272).

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

1331331301128 is a wasteful number, since it uses less digits than its factorization.

1331331301128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84176901 (or 84176897 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 1331331301128 its reverse (8211031331331), we get a palindrome (9542362632459).

The spelling of 1331331301128 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred one thousand, one hundred twenty-eight".