1321430001 has 8 divisors (see below), whose sum is σ = 1764783360. Its totient is φ = 879514992.

The previous prime is 1321429987. The next prime is 1321430003. The reversal of 1321430001 is 1000341231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321430001 - 2⁶ = 1321429937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321430003) 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, 357441 + ... + 361118.

It is an arithmetic number, because the mean of its divisors is an integer number (220597920).

Almost surely, 2^1321430001 is an apocalyptic number.

It is an amenable number.

1321430001 is a deficient number, since it is larger than the sum of its proper divisors (443353359).

1321430001 is an equidigital number, since it uses as much as digits as its factorization.

1321430001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719175.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1321430001 is about 36351.4786631851. The cubic root of 1321430001 is about 1097.3572927219.

Adding to 1321430001 its reverse (1000341231), we get a palindrome (2321771232).

The spelling of 1321430001 in words is "one billion, three hundred twenty-one million, four hundred thirty thousand, one".