23443443311021 has 8 divisors (see below), whose sum is σ = 23658728163840. Its totient is φ = 23228162229168.

The previous prime is 23443443311003. The next prime is 23443443311051. The reversal of 23443443311021 is 12011334434432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23443443311021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23443443311051) 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, 12412700 + ... + 14176106.

It is an arithmetic number, because the mean of its divisors is an integer number (2957341020480).

Almost surely, 2^{23443443311021} is an apocalyptic number.

It is an amenable number.

23443443311021 is a deficient number, since it is larger than the sum of its proper divisors (215284852819).

23443443311021 is a wasteful number, since it uses less digits than its factorization.

23443443311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885483.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 23443443311021 its reverse (12011334434432), we get a palindrome (35454777745453).

The spelling of 23443443311021 in words is "twenty-three trillion, four hundred forty-three billion, four hundred forty-three million, three hundred eleven thousand, twenty-one".