1331310040 has 32 divisors (see below), whose sum is σ = 3031544880. Its totient is φ = 526106752.

The previous prime is 1331310023. The next prime is 1331310053. The reversal of 1331310040 is 400131331.

It is a junction number, because it is equal to n+sod(n) for n = 1331309996 and 1331310023.

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, 197179 + ... + 203818.

Almost surely, 2^1331310040 is an apocalyptic number.

1331310040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331310040 is an abundant number, since it is smaller than the sum of its proper divisors (1700234840).

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

1331310040 is a wasteful number, since it uses less digits than its factorization.

1331310040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401091 (or 401087 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1331310040 is about 36487.1215636422. The cubic root of 1331310040 is about 1100.0854038374.

Adding to 1331310040 its reverse (400131331), we get a palindrome (1731441371).

The spelling of 1331310040 in words is "one billion, three hundred thirty-one million, three hundred ten thousand, forty".