20010113232 has 80 divisors (see below), whose sum is σ = 52348732800. Its totient is φ = 6585785856.

The previous prime is 20010113209. The next prime is 20010113261. The reversal of 20010113232 is 23231101002.

It is a super-2 number, since 2×20010113232² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1719658 + ... + 1731254.

It is an arithmetic number, because the mean of its divisors is an integer number (654359160).

Almost surely, 2^20010113232 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 20010113232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26174366400).

20010113232 is an abundant number, since it is smaller than the sum of its proper divisors (32338619568).

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

20010113232 is a wasteful number, since it uses less digits than its factorization.

20010113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12060 (or 12054 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20010113232 its reverse (23231101002), we get a palindrome (43241214234).

The spelling of 20010113232 in words is "twenty billion, ten million, one hundred thirteen thousand, two hundred thirty-two".