52121125131 has 8 divisors (see below), whose sum is σ = 69502202880. Its totient is φ = 34743732072.

The previous prime is 52121125117. The next prime is 52121125201. The reversal of 52121125131 is 13152112125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52121125131 - 2¹⁸ = 52120862987 is a prime.

It is a super-2 number, since 2×52121125131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52121105131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887995 + ... + 944868.

It is an arithmetic number, because the mean of its divisors is an integer number (8687775360).

Almost surely, 2^52121125131 is an apocalyptic number.

52121125131 is a deficient number, since it is larger than the sum of its proper divisors (17381077749).

52121125131 is a wasteful number, since it uses less digits than its factorization.

52121125131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842345.

The product of its digits is 600, while the sum is 24.

Adding to 52121125131 its reverse (13152112125), we get a palindrome (65273237256).

The spelling of 52121125131 in words is "fifty-two billion, one hundred twenty-one million, one hundred twenty-five thousand, one hundred thirty-one".