1331311130120 has 32 divisors (see below), whose sum is σ = 2996065437120. Its totient is φ = 532415048640.

The previous prime is 1331311130081. The next prime is 1331311130129. The reversal of 1331311130120 is 210311131331.

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 = 1331311130092 and 1331311130101.

It is not an unprimeable number, because it can be changed into a prime (1331311130129) 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, 3221582 + ... + 3611261.

It is an arithmetic number, because the mean of its divisors is an integer number (93627044910).

Almost surely, 2^{1331311130120} is an apocalyptic number.

1331311130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331311130120 is an abundant number, since it is smaller than the sum of its proper divisors (1664754307000).

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

1331311130120 is a wasteful number, since it uses less digits than its factorization.

1331311130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6837725 (or 6837721 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1331311130120 its reverse (210311131331), we get a palindrome (1541622261451).

The spelling of 1331311130120 in words is "one trillion, three hundred thirty-one billion, three hundred eleven million, one hundred thirty thousand, one hundred twenty".