4133420121 has 4 divisors (see below), whose sum is σ = 5511226832. Its totient is φ = 2755613412.

The previous prime is 4133420119. The next prime is 4133420149. The reversal of 4133420121 is 1210243314.

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 not a de Polignac number, because 4133420121 - 2¹ = 4133420119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4133420101) 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, 688903351 + ... + 688903356.

It is an arithmetic number, because the mean of its divisors is an integer number (1377806708).

Almost surely, 2^4133420121 is an apocalyptic number.

It is an amenable number.

4133420121 is a deficient number, since it is larger than the sum of its proper divisors (1377806711).

4133420121 is a wasteful number, since it uses less digits than its factorization.

4133420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377806710.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4133420121 is about 64291.6800293786. The cubic root of 4133420121 is about 1604.8576486942.

Adding to 4133420121 its reverse (1210243314), we get a palindrome (5343663435).

The spelling of 4133420121 in words is "four billion, one hundred thirty-three million, four hundred twenty thousand, one hundred twenty-one".