52113231020 has 24 divisors (see below), whose sum is σ = 109517549904. Its totient is φ = 20830099136.

The previous prime is 52113230903. The next prime is 52113231029. The reversal of 52113231020 is 2013231125.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52113230983 and 52113231001.

It is not an unprimeable number, because it can be changed into a prime (52113231029) 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, 921434 + ... + 976353.

It is an arithmetic number, because the mean of its divisors is an integer number (4563231246).

Almost surely, 2^52113231020 is an apocalyptic number.

It is an amenable number.

52113231020 is an abundant number, since it is smaller than the sum of its proper divisors (57404318884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52113231020 is a wasteful number, since it uses less digits than its factorization.

52113231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899169 (or 1899167 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 52113231020 its reverse (2013231125), we get a palindrome (54126462145).

The spelling of 52113231020 in words is "fifty-two billion, one hundred thirteen million, two hundred thirty-one thousand, twenty".