20111111032 has 16 divisors (see below), whose sum is σ = 39692982600. Its totient is φ = 9526315680.

The previous prime is 20111111021. The next prime is 20111111039. The reversal of 20111111032 is 23011111102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111111039) 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, 66154819 + ... + 66155122.

Almost surely, 2^20111111032 is an apocalyptic number.

It is an amenable number.

20111111032 is a deficient number, since it is larger than the sum of its proper divisors (19581871568).

20111111032 is a wasteful number, since it uses less digits than its factorization.

20111111032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132309966 (or 132309962 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 20111111032 its reverse (23011111102), we get a palindrome (43122222134).

The spelling of 20111111032 in words is "twenty billion, one hundred eleven million, one hundred eleven thousand, thirty-two".