20111011032 has 64 divisors (see below), whose sum is σ = 59958305280. Its totient is φ = 5496175872.

The previous prime is 20111011003. The next prime is 20111011051. The reversal of 20111011032 is 23011011102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20111010999 and 20111011017.

It is a congruent number.

It is an unprimeable number.

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, 2598493 + ... + 2606220.

It is an arithmetic number, because the mean of its divisors is an integer number (936848520).

Almost surely, 2^20111011032 is an apocalyptic number.

It is an amenable number.

20111011032 is an abundant number, since it is smaller than the sum of its proper divisors (39847294248).

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

20111011032 is a wasteful number, since it uses less digits than its factorization.

20111011032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204752 (or 5204748 counting only the distinct ones).

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

Adding to 20111011032 its reverse (23011011102), we get a palindrome (43122022134).

The spelling of 20111011032 in words is "twenty billion, one hundred eleven million, eleven thousand, thirty-two".