1321343001 has 48 divisors (see below), whose sum is σ = 2188380480. Its totient is φ = 760959360.

The previous prime is 1321342951. The next prime is 1321343047. The reversal of 1321343001 is 1003431231.

1321343001 is a `hidden beast` number, since 1 + 321 + 343 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 1321343001 - 2⁹ = 1321342489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321343081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153315 + ... + 161703.

It is an arithmetic number, because the mean of its divisors is an integer number (45591260).

Almost surely, 2^1321343001 is an apocalyptic number.

1321343001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1321343001 is a deficient number, since it is larger than the sum of its proper divisors (867037479).

1321343001 is a wasteful number, since it uses less digits than its factorization.

1321343001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486 (or 8483 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1321343001 is about 36350.2819934041. The cubic root of 1321343001 is about 1097.3332096756. Note that the first 3 decimals are identical.

Adding to 1321343001 its reverse (1003431231), we get a palindrome (2324774232).

The spelling of 1321343001 in words is "one billion, three hundred twenty-one million, three hundred forty-three thousand, one".