1321411040 has 24 divisors (see below), whose sum is σ = 3121833960. Its totient is φ = 528564352.

The previous prime is 1321411001. The next prime is 1321411043. The reversal of 1321411040 is 401141231.

It is a happy number.

It is a super-2 number, since 2×1321411040² = 3492254273267763200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321411043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4129250 + ... + 4129569.

It is an arithmetic number, because the mean of its divisors is an integer number (130076415).

Almost surely, 2^1321411040 is an apocalyptic number.

1321411040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321411040 is an abundant number, since it is smaller than the sum of its proper divisors (1800422920).

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

1321411040 is an equidigital number, since it uses as much as digits as its factorization.

1321411040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8258834 (or 8258826 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1321411040 is about 36351.2178613042. The cubic root of 1321411040 is about 1097.3520440920.

Adding to 1321411040 its reverse (401141231), we get a palindrome (1722552271).

The spelling of 1321411040 in words is "one billion, three hundred twenty-one million, four hundred eleven thousand, forty".