20111021032 has 16 divisors (see below), whose sum is σ = 37716580260. Its totient is φ = 10053266304.

The previous prime is 20111021023. The next prime is 20111021053. The reversal of 20111021032 is 23012011102.

It can be written as a sum of positive squares in 2 ways, for example, as 10823073156 + 9287947876 = 104034^2 + 96374^2 .

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, 242133 + ... + 314404.

Almost surely, 2^20111021032 is an apocalyptic number.

It is an amenable number.

20111021032 is a deficient number, since it is larger than the sum of its proper divisors (17605559228).

20111021032 is a wasteful number, since it uses less digits than its factorization.

20111021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561060 (or 561056 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20111021032 its reverse (23012011102), we get a palindrome (43123032134).

The spelling of 20111021032 in words is "twenty billion, one hundred eleven million, twenty-one thousand, thirty-two".