21012323223032 has 16 divisors (see below), whose sum is σ = 39435663834000. Its totient is φ = 10496146200640.

The previous prime is 21012323223007. The next prime is 21012323223049. The reversal of 21012323223032 is 23032232321012.

It is a junction number, because it is equal to n+sod(n) for n = 21012323222992 and 21012323223010.

It is a congruent number.

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, 1251917444 + ... + 1251934227.

It is an arithmetic number, because the mean of its divisors is an integer number (2464728989625).

Almost surely, 2^{21012323223032} is an apocalyptic number.

It is an amenable number.

21012323223032 is a deficient number, since it is larger than the sum of its proper divisors (18423340610968).

21012323223032 is a wasteful number, since it uses less digits than its factorization.

21012323223032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503852726 (or 2503852722 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21012323223032 its reverse (23032232321012), we get a palindrome (44044555544044).

The spelling of 21012323223032 in words is "twenty-one trillion, twelve billion, three hundred twenty-three million, two hundred twenty-three thousand, thirty-two".