1331040120 has 32 divisors (see below), whose sum is σ = 3993120720. Its totient is φ = 354944000.

The previous prime is 1331040119. The next prime is 1331040167. The reversal of 1331040120 is 210401331.

It is a super-2 number, since 2×1331040120² = 3543335602099228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1331040120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5545881 + ... + 5546120.

Almost surely, 2^1331040120 is an apocalyptic number.

1331040120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331040120 is an abundant number, since it is smaller than the sum of its proper divisors (2662080600).

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

1331040120 is a wasteful number, since it uses less digits than its factorization.

1331040120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092015 (or 11092011 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1331040120 is about 36483.4225368180. The cubic root of 1331040120 is about 1100.0110522306.

Adding to 1331040120 its reverse (210401331), we get a palindrome (1541441451).

The spelling of 1331040120 in words is "one billion, three hundred thirty-one million, forty thousand, one hundred twenty".