20011232132 has 12 divisors (see below), whose sum is σ = 35022630720. Its totient is φ = 10004766216.

The previous prime is 20011232119. The next prime is 20011232149. The reversal of 20011232132 is 23123211002.

It is a super-2 number, since 2×20011232132² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20011232132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157928 + ... + 254879.

It is an arithmetic number, because the mean of its divisors is an integer number (2918552560).

Almost surely, 2^20011232132 is an apocalyptic number.

It is an amenable number.

20011232132 is a deficient number, since it is larger than the sum of its proper divisors (15011398588).

20011232132 is a wasteful number, since it uses less digits than its factorization.

20011232132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424930 (or 424928 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20011232132 its reverse (23123211002), we get a palindrome (43134443134).

The spelling of 20011232132 in words is "twenty billion, eleven million, two hundred thirty-two thousand, one hundred thirty-two".