20111333132 has 36 divisors (see below), whose sum is σ = 40785733464. Its totient is φ = 8603773440.

The previous prime is 20111333131. The next prime is 20111333159. The reversal of 20111333132 is 23133311102.

It is not an unprimeable number, because it can be changed into a prime (20111333131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778073 + ... + 803504.

Almost surely, 2^20111333132 is an apocalyptic number.

20111333132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20111333132 is an abundant number, since it is smaller than the sum of its proper divisors (20674400332).

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

20111333132 is a wasteful number, since it uses less digits than its factorization.

20111333132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581626 (or 1581607 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20111333132 its reverse (23133311102), we get a palindrome (43244644234).

The spelling of 20111333132 in words is "twenty billion, one hundred eleven million, three hundred thirty-three thousand, one hundred thirty-two".