20111113332 has 36 divisors (see below), whose sum is σ = 50840810020. Its totient is φ = 6703126272.

The previous prime is 20111113327. The next prime is 20111113333. The reversal of 20111113332 is 23331111102.

It can be written as a sum of positive squares in 2 ways, for example, as 8047166436 + 12063946896 = 89706^2 + 109836^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111113333) 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, 685068 + ... + 713820.

Almost surely, 2^20111113332 is an apocalyptic number.

It is an amenable number.

20111113332 is an abundant number, since it is smaller than the sum of its proper divisors (30729696688).

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

20111113332 is a wasteful number, since it uses less digits than its factorization.

20111113332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48192 (or 48187 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20111113332 its reverse (23331111102), we get a palindrome (43442224434).

The spelling of 20111113332 in words is "twenty billion, one hundred eleven million, one hundred thirteen thousand, three hundred thirty-two".