1321424310 has 64 divisors (see below), whose sum is σ = 3257210880. Its totient is φ = 342975360.

The previous prime is 1321424281. The next prime is 1321424323. The reversal of 1321424310 is 134241231.

It is a super-2 number, since 2×1321424310² = 3492324414117952200, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 164344 + ... + 172196.

It is an arithmetic number, because the mean of its divisors is an integer number (50893920).

Almost surely, 2^1321424310 is an apocalyptic number.

1321424310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321424310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628605440).

1321424310 is an abundant number, since it is smaller than the sum of its proper divisors (1935786570).

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

1321424310 is a wasteful number, since it uses less digits than its factorization.

1321424310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1321424310 is about 36351.4003856798. The cubic root of 1321424310 is about 1097.3557173908.

Adding to 1321424310 its reverse (134241231), we get a palindrome (1455665541).

The spelling of 1321424310 in words is "one billion, three hundred twenty-one million, four hundred twenty-four thousand, three hundred ten".