47305240121 has 4 divisors (see below), whose sum is σ = 47309216292. Its totient is φ = 47301263952.

The previous prime is 47305240057. The next prime is 47305240127. The reversal of 47305240121 is 12104250374.

47305240121 is digitally balanced in base 2, 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 can be written as a sum of positive squares in 2 ways, for example, as 27236551225 + 20068688896 = 165035^2 + 141664^2 .

It is a cyclic number.

It is not a de Polignac number, because 47305240121 - 2⁶ = 47305240057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47305240127) 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, 1970186 + ... + 1994051.

It is an arithmetic number, because the mean of its divisors is an integer number (11827304073).

Almost surely, 2^47305240121 is an apocalyptic number.

It is an amenable number.

47305240121 is a deficient number, since it is larger than the sum of its proper divisors (3976171).

47305240121 is a wasteful number, since it uses less digits than its factorization.

47305240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976170.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 47305240121 its reverse (12104250374), we get a palindrome (59409490495).

The spelling of 47305240121 in words is "forty-seven billion, three hundred five million, two hundred forty thousand, one hundred twenty-one".