1321184260 has 24 divisors (see below), whose sum is σ = 3026713536. Its totient is φ = 480430560.

The previous prime is 1321184231. The next prime is 1321184269. The reversal of 1321184260 is 624811231.

It is not an unprimeable number, because it can be changed into a prime (1321184269) 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, 3002472 + ... + 3002911.

It is an arithmetic number, because the mean of its divisors is an integer number (126113064).

Almost surely, 2^1321184260 is an apocalyptic number.

1321184260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321184260 is an abundant number, since it is smaller than the sum of its proper divisors (1705529276).

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

1321184260 is a wasteful number, since it uses less digits than its factorization.

1321184260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005403 (or 6005401 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1321184260 is about 36348.0984371948. The cubic root of 1321184260 is about 1097.2892648036.

Adding to 1321184260 its reverse (624811231), we get a palindrome (1945995491).

It can be divided in two parts, 1321 and 184260, that added together give a palindrome (185581).

The spelling of 1321184260 in words is "one billion, three hundred twenty-one million, one hundred eighty-four thousand, two hundred sixty".