21322631642043 has 16 divisors (see below), whose sum is σ = 28438103268000. Its totient is φ = 14211124469760.

The previous prime is 21322631642033. The next prime is 21322631642089. The reversal of 21322631642043 is 34024613622312.

It is not a de Polignac number, because 21322631642043 - 2²¹ = 21322629544891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21322631641992 and 21322631642010.

It is not an unprimeable number, because it can be changed into a prime (21322631642033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163340343 + ... + 163470831.

It is an arithmetic number, because the mean of its divisors is an integer number (1777381454250).

Almost surely, 2^{21322631642043} is an apocalyptic number.

21322631642043 is a deficient number, since it is larger than the sum of its proper divisors (7115471625957).

21322631642043 is a wasteful number, since it uses less digits than its factorization.

21322631642043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145262.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 21322631642043 in words is "twenty-one trillion, three hundred twenty-two billion, six hundred thirty-one million, six hundred forty-two thousand, forty-three".