4661334121 has 4 divisors (see below), whose sum is σ = 4664138752. Its totient is φ = 4658529492.

The previous prime is 4661334107. The next prime is 4661334131. The reversal of 4661334121 is 1214331664.

It is a happy number.

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 4661334121 - 2⁵ = 4661334089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4661334131) 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, 1399821 + ... + 1403146.

It is an arithmetic number, because the mean of its divisors is an integer number (1166034688).

Almost surely, 2^4661334121 is an apocalyptic number.

It is an amenable number.

4661334121 is a deficient number, since it is larger than the sum of its proper divisors (2804631).

4661334121 is a wasteful number, since it uses less digits than its factorization.

4661334121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804630.

The product of its digits is 10368, while the sum is 31.

The square root of 4661334121 is about 68273.9637123845. The cubic root of 4661334121 is about 1670.4625538123.

Adding to 4661334121 its reverse (1214331664), we get a palindrome (5875665785).

The spelling of 4661334121 in words is "four billion, six hundred sixty-one million, three hundred thirty-four thousand, one hundred twenty-one".