1321153325 has 12 divisors (see below), whose sum is σ = 1639234368. Its totient is φ = 1056274800.

The previous prime is 1321153279. The next prime is 1321153331. The reversal of 1321153325 is 5233511231.

It is not a de Polignac number, because 1321153325 - 2¹² = 1321149229 is a prime.

It is a super-2 number, since 2×1321153325² = 3490892216317111250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321153294 and 1321153303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27740 + ... + 58410.

It is an arithmetic number, because the mean of its divisors is an integer number (136602864).

Almost surely, 2^1321153325 is an apocalyptic number.

It is an amenable number.

1321153325 is a deficient number, since it is larger than the sum of its proper divisors (318081043).

1321153325 is a wasteful number, since it uses less digits than its factorization.

1321153325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32404 (or 32399 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 1321153325 is about 36347.6728966243. The cubic root of 1321153325 is about 1097.2807005407.

Adding to 1321153325 its reverse (5233511231), we get a palindrome (6554664556).

The spelling of 1321153325 in words is "one billion, three hundred twenty-one million, one hundred fifty-three thousand, three hundred twenty-five".