20325143524 has 96 divisors (see below), whose sum is σ = 43217879040. Its totient is φ = 8170243200.

The previous prime is 20325143519. The next prime is 20325143617. The reversal of 20325143524 is 42534152302.

It is a super-2 number, since 2×20325143524² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 32210689 + ... + 32211319.

It is an arithmetic number, because the mean of its divisors is an integer number (450186240).

Almost surely, 2^20325143524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20325143524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21608939520).

20325143524 is an abundant number, since it is smaller than the sum of its proper divisors (22892735516).

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

20325143524 is a wasteful number, since it uses less digits than its factorization.

20325143524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20325143524 its reverse (42534152302), we get a palindrome (62859295826).

The spelling of 20325143524 in words is "twenty billion, three hundred twenty-five million, one hundred forty-three thousand, five hundred twenty-four".