321252001 has 8 divisors (see below), whose sum is σ = 367470144. Its totient is φ = 275115120.

The previous prime is 321251993. The next prime is 321252007. The reversal of 321252001 is 100252123.

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

It is not a de Polignac number, because 321252001 - 2³ = 321251993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321252007) 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, 11590 + ... + 27871.

It is an arithmetic number, because the mean of its divisors is an integer number (45933768).

Almost surely, 2^321252001 is an apocalyptic number.

It is an amenable number.

321252001 is a deficient number, since it is larger than the sum of its proper divisors (46218143).

321252001 is a wasteful number, since it uses less digits than its factorization.

321252001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40631.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 321252001 is about 17923.5041495797. The cubic root of 321252001 is about 684.8812559901.

The spelling of 321252001 in words is "three hundred twenty-one million, two hundred fifty-two thousand, one".