2001313421 has 8 divisors (see below), whose sum is σ = 2089131264. Its totient is φ = 1913562640.

The previous prime is 2001313411. The next prime is 2001313429. The reversal of 2001313421 is 1243131002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001313421 - 2²⁶ = 1934204557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001313421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001313429) 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, 49916 + ... + 80586.

It is an arithmetic number, because the mean of its divisors is an integer number (261141408).

Almost surely, 2^2001313421 is an apocalyptic number.

It is an amenable number.

2001313421 is a deficient number, since it is larger than the sum of its proper divisors (87817843).

2001313421 is a wasteful number, since it uses less digits than its factorization.

2001313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33531.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2001313421 is about 44736.0416331173. The cubic root of 2001313421 is about 1260.1967906706.

Adding to 2001313421 its reverse (1243131002), we get a palindrome (3244444423).

The spelling of 2001313421 in words is "two billion, one million, three hundred thirteen thousand, four hundred twenty-one".