2000023421 has 4 divisors (see below), whose sum is σ = 2181843744. Its totient is φ = 1818203100.

The previous prime is 2000023387. The next prime is 2000023427. The reversal of 2000023421 is 1243200002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000023421 - 2¹⁰ = 2000022397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000023396 and 2000023405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000023427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90910145 + ... + 90910166.

It is an arithmetic number, because the mean of its divisors is an integer number (545460936).

Almost surely, 2^2000023421 is an apocalyptic number.

It is an amenable number.

2000023421 is a deficient number, since it is larger than the sum of its proper divisors (181820323).

2000023421 is a wasteful number, since it uses less digits than its factorization.

2000023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181820322.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2000023421 is about 44721.6214039697. The cubic root of 2000023421 is about 1259.9259679775.

Adding to 2000023421 its reverse (1243200002), we get a palindrome (3243223423).

The spelling of 2000023421 in words is "two billion, twenty-three thousand, four hundred twenty-one".