20111201332 has 12 divisors (see below), whose sum is σ = 35471726080. Its totient is φ = 9976422456.

The previous prime is 20111201317. The next prime is 20111201333. The reversal of 20111201332 is 23310211102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111201333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19793982 + ... + 19794997.

Almost surely, 2^20111201332 is an apocalyptic number.

It is an amenable number.

20111201332 is a deficient number, since it is larger than the sum of its proper divisors (15360524748).

20111201332 is a wasteful number, since it uses less digits than its factorization.

20111201332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39589110 (or 39589108 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20111201332 its reverse (23310211102), we get a palindrome (43421412434).

The spelling of 20111201332 in words is "twenty billion, one hundred eleven million, two hundred one thousand, three hundred thirty-two".