2001420343 has 16 divisors (see below), whose sum is σ = 2180487456. Its totient is φ = 1826006400.

The previous prime is 2001420241. The next prime is 2001420373. The reversal of 2001420343 is 3430241002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001420343 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 2001420343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001420373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119096 + ... + 1120882.

It is an arithmetic number, because the mean of its divisors is an integer number (136280466).

Almost surely, 2^2001420343 is an apocalyptic number.

2001420343 is a deficient number, since it is larger than the sum of its proper divisors (179067113).

2001420343 is a wasteful number, since it uses less digits than its factorization.

2001420343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2001420343 is about 44737.2366491271. The cubic root of 2001420343 is about 1260.2192326597.

Adding to 2001420343 its reverse (3430241002), we get a palindrome (5431661345).

The spelling of 2001420343 in words is "two billion, one million, four hundred twenty thousand, three hundred forty-three".