4201421051 has 4 divisors (see below), whose sum is σ = 4224633504. Its totient is φ = 4178208600.

The previous prime is 4201421047. The next prime is 4201421087. The reversal of 4201421051 is 1501241024.

It is a happy number.

4201421051 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4201421051 - 2² = 4201421047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4201421251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11605955 + ... + 11606316.

It is an arithmetic number, because the mean of its divisors is an integer number (1056158376).

Almost surely, 2^4201421051 is an apocalyptic number.

4201421051 is a deficient number, since it is larger than the sum of its proper divisors (23212453).

4201421051 is a wasteful number, since it uses less digits than its factorization.

4201421051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23212452.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4201421051 is about 64818.3697033488. The cubic root of 4201421051 is about 1613.6105909339.

Adding to 4201421051 its reverse (1501241024), we get a palindrome (5702662075).

The spelling of 4201421051 in words is "four billion, two hundred one million, four hundred twenty-one thousand, fifty-one".