47121054123 has 64 divisors (see below), whose sum is σ = 75741249024. Its totient is φ = 25674624000.

The previous prime is 47121054089. The next prime is 47121054131. The reversal of 47121054123 is 32145012174.

It is not a de Polignac number, because 47121054123 - 2¹⁴ = 47121037739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47121054133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12152061 + ... + 12155937.

It is an arithmetic number, because the mean of its divisors is an integer number (1183457016).

Almost surely, 2^47121054123 is an apocalyptic number.

47121054123 is a deficient number, since it is larger than the sum of its proper divisors (28620194901).

47121054123 is a wasteful number, since it uses less digits than its factorization.

47121054123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 47121054123 its reverse (32145012174), we get a palindrome (79266066297).

The spelling of 47121054123 in words is "forty-seven billion, one hundred twenty-one million, fifty-four thousand, one hundred twenty-three".