21011231303032 has 32 divisors (see below), whose sum is σ = 41227400476800. Its totient is φ = 10019890501984.

The previous prime is 21011231303021. The next prime is 21011231303059. The reversal of 21011231303032 is 23030313211012.

It is a super-2 number, since 2×21011231303032² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21011231302994 and 21011231303012.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 164477182 + ... + 164604877.

It is an arithmetic number, because the mean of its divisors is an integer number (1288356264900).

Almost surely, 2^{21011231303032} is an apocalyptic number.

It is an amenable number.

21011231303032 is a deficient number, since it is larger than the sum of its proper divisors (20216169173768).

21011231303032 is a wasteful number, since it uses less digits than its factorization.

21011231303032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329082435 (or 329082431 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21011231303032 its reverse (23030313211012), we get a palindrome (44041544514044).

The spelling of 21011231303032 in words is "twenty-one trillion, eleven billion, two hundred thirty-one million, three hundred three thousand, thirty-two".