20211442323 has 8 divisors (see below), whose sum is σ = 27877851600. Its totient is φ = 13009663968.

The previous prime is 20211442297. The next prime is 20211442327. The reversal of 20211442323 is 32324411202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20211442323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20211442293 and 20211442302.

It is not an unprimeable number, because it can be changed into a prime (20211442327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116157628 + ... + 116157801.

It is an arithmetic number, because the mean of its divisors is an integer number (3484731450).

Almost surely, 2^20211442323 is an apocalyptic number.

20211442323 is a deficient number, since it is larger than the sum of its proper divisors (7666409277).

20211442323 is a wasteful number, since it uses less digits than its factorization.

20211442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232315461.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20211442323 its reverse (32324411202), we get a palindrome (52535853525).

The spelling of 20211442323 in words is "twenty billion, two hundred eleven million, four hundred forty-two thousand, three hundred twenty-three".