22001021031323 has 4 divisors (see below), whose sum is σ = 22122573633888. Its totient is φ = 21879468428760.

The previous prime is 22001021031167. The next prime is 22001021031389. The reversal of 22001021031323 is 32313012010022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22001021031323 - 2¹⁰ = 22001021030299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22001021031295 and 22001021031304.

It is not an unprimeable number, because it can be changed into a prime (22001021031623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60776301011 + ... + 60776301372.

It is an arithmetic number, because the mean of its divisors is an integer number (5530643408472).

Almost surely, 2^{22001021031323} is an apocalyptic number.

22001021031323 is a deficient number, since it is larger than the sum of its proper divisors (121552602565).

22001021031323 is a wasteful number, since it uses less digits than its factorization.

22001021031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121552602564.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22001021031323 its reverse (32313012010022), we get a palindrome (54314033041345).

The spelling of 22001021031323 in words is "twenty-two trillion, one billion, twenty-one million, thirty-one thousand, three hundred twenty-three".