20531141052 has 12 divisors (see below), whose sum is σ = 47905995816. Its totient is φ = 6843713680.

The previous prime is 20531141051. The next prime is 20531141069. The reversal of 20531141052 is 25014113502.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×20531141052³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20531141051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855464199 + ... + 855464222.

It is an arithmetic number, because the mean of its divisors is an integer number (3992166318).

Almost surely, 2^20531141052 is an apocalyptic number.

It is an amenable number.

20531141052 is an abundant number, since it is smaller than the sum of its proper divisors (27374854764).

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

20531141052 is a wasteful number, since it uses less digits than its factorization.

20531141052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710928428 (or 1710928426 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20531141052 its reverse (25014113502), we get a palindrome (45545254554).

The spelling of 20531141052 in words is "twenty billion, five hundred thirty-one million, one hundred forty-one thousand, fifty-two".