20111031032 has 16 divisors (see below), whose sum is σ = 38627895600. Its totient is φ = 9810258880.

The previous prime is 20111031011. The next prime is 20111031043. The reversal of 20111031032 is 23013011102.

It is a junction number, because it is equal to n+sod(n) for n = 20111030998 and 20111031016.

It is a congruent number.

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, 30656732 + ... + 30657387.

It is an arithmetic number, because the mean of its divisors is an integer number (2414243475).

Almost surely, 2^20111031032 is an apocalyptic number.

It is an amenable number.

20111031032 is a deficient number, since it is larger than the sum of its proper divisors (18516864568).

20111031032 is a wasteful number, since it uses less digits than its factorization.

20111031032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61314166 (or 61314162 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20111031032 its reverse (23013011102), we get a palindrome (43124042134).

The spelling of 20111031032 in words is "twenty billion, one hundred eleven million, thirty-one thousand, thirty-two".