1352331321 has 16 divisors (see below), whose sum is σ = 2030481408. Its totient is φ = 793155600.

The previous prime is 1352331313. The next prime is 1352331341. The reversal of 1352331321 is 1231332531.

It is not a de Polignac number, because 1352331321 - 2³ = 1352331313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1352331291 and 1352331300.

It is not an unprimeable number, because it can be changed into a prime (1352331341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659941 + ... + 661986.

It is an arithmetic number, because the mean of its divisors is an integer number (126905088).

Almost surely, 2^1352331321 is an apocalyptic number.

1352331321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1352331321 is a deficient number, since it is larger than the sum of its proper divisors (678150087).

1352331321 is a wasteful number, since it uses less digits than its factorization.

1352331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321972.

The product of its digits is 1620, while the sum is 24.

The square root of 1352331321 is about 36774.0577173637. The cubic root of 1352331321 is about 1105.8452807627.

Adding to 1352331321 its reverse (1231332531), we get a palindrome (2583663852).

It can be divided in two parts, 13523 and 31321, that added together give a palindrome (44844).

The spelling of 1352331321 in words is "one billion, three hundred fifty-two million, three hundred thirty-one thousand, three hundred twenty-one".