20010113532 has 24 divisors (see below), whose sum is σ = 51878072400. Its totient is φ = 6670037808.

The previous prime is 20010113531. The next prime is 20010113533. The reversal of 20010113532 is 23531101002.

20010113532 is a `hidden beast` number, since 20 + 0 + 1 + 0 + 113 + 532 = 666.

It is an interprime number because it is at equal distance from previous prime (20010113531) and next prime (20010113533).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010113531) 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 7 ways as a sum of consecutive naturals, for example, 92639307 + ... + 92639522.

It is an arithmetic number, because the mean of its divisors is an integer number (2161586350).

Almost surely, 2^20010113532 is an apocalyptic number.

It is an amenable number.

20010113532 is an abundant number, since it is smaller than the sum of its proper divisors (31867958868).

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

20010113532 is a wasteful number, since it uses less digits than its factorization.

20010113532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185278842 (or 185278834 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 20010113532 its reverse (23531101002), we get a palindrome (43541214534).

The spelling of 20010113532 in words is "twenty billion, ten million, one hundred thirteen thousand, five hundred thirty-two".