52131031121 has 8 divisors (see below), whose sum is σ = 56477287104. Its totient is φ = 47832800400.

The previous prime is 52131031109. The next prime is 52131031171. The reversal of 52131031121 is 12113013125.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52131031121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52131031093 and 52131031102.

It is not an unprimeable number, because it can be changed into a prime (52131031171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12004055 + ... + 12008396.

It is an arithmetic number, because the mean of its divisors is an integer number (7059660888).

Almost surely, 2^52131031121 is an apocalyptic number.

It is an amenable number.

52131031121 is a deficient number, since it is larger than the sum of its proper divisors (4346255983).

52131031121 is a wasteful number, since it uses less digits than its factorization.

52131031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24012631.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 52131031121 its reverse (12113013125), we get a palindrome (64244044246).

The spelling of 52131031121 in words is "fifty-two billion, one hundred thirty-one million, thirty-one thousand, one hundred twenty-one".