20011011132 has 48 divisors (see below), whose sum is σ = 53499962880. Its totient is φ = 5702724672.

The previous prime is 20011011121. The next prime is 20011011133. The reversal of 20011011132 is 23111011002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011011133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 273528 + ... + 338879.

It is an arithmetic number, because the mean of its divisors is an integer number (1114582560).

Almost surely, 2^20011011132 is an apocalyptic number.

It is an amenable number.

20011011132 is an abundant number, since it is smaller than the sum of its proper divisors (33488951748).

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

20011011132 is a wasteful number, since it uses less digits than its factorization.

20011011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612810 (or 612808 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20011011132 its reverse (23111011002), we get a palindrome (43122022134).

The spelling of 20011011132 in words is "twenty billion, eleven million, eleven thousand, one hundred thirty-two".