21000011111332 has 12 divisors (see below), whose sum is σ = 40090930303536. Its totient is φ = 9545459596040.

The previous prime is 21000011111323. The next prime is 21000011111347. The reversal of 21000011111332 is 23311111000012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238636489858 + ... + 238636489945.

It is an arithmetic number, because the mean of its divisors is an integer number (3340910858628).

Almost surely, 2^{21000011111332} is an apocalyptic number.

21000011111332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21000011111332 is a deficient number, since it is larger than the sum of its proper divisors (19090919192204).

21000011111332 is a wasteful number, since it uses less digits than its factorization.

21000011111332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477272979818 (or 477272979816 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 21000011111332 its reverse (23311111000012), we get a palindrome (44311122111344).

The spelling of 21000011111332 in words is "twenty-one trillion, eleven million, one hundred eleven thousand, three hundred thirty-two".