20113132 has 48 divisors (see below), whose sum is σ = 40303872. Its totient is φ = 8712000.

The previous prime is 20113127. The next prime is 20113139. The reversal of 20113132 is 23131102.

It is a super-3 number, since 3×20113132³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (20113139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80007 + ... + 80257.

It is an arithmetic number, because the mean of its divisors is an integer number (839664).

Almost surely, 2^20113132 is an apocalyptic number.

It is an amenable number.

20113132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20113132 is a wasteful number, since it uses less digits than its factorization.

20113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 20113132 is about 4484.7666605967. The cubic root of 20113132 is about 271.9526121309.

Adding to 20113132 its reverse (23131102), we get a palindrome (43244234).

The spelling of 20113132 in words is "twenty million, one hundred thirteen thousand, one hundred thirty-two".