201122444423 has 8 divisors (see below), whose sum is σ = 203681520000. Its totient is φ = 198566605048.

The previous prime is 201122444399. The next prime is 201122444437. The reversal of 201122444423 is 324444221102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201122444423 - 2³⁰ = 200048702599 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 (201122444623) 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, 683843 + ... + 932676.

It is an arithmetic number, because the mean of its divisors is an integer number (25460190000).

Almost surely, 2^201122444423 is an apocalyptic number.

201122444423 is a deficient number, since it is larger than the sum of its proper divisors (2559075577).

201122444423 is a wasteful number, since it uses less digits than its factorization.

201122444423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618101.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 201122444423 its reverse (324444221102), we get a palindrome (525566665525).

The spelling of 201122444423 in words is "two hundred one billion, one hundred twenty-two million, four hundred forty-four thousand, four hundred twenty-three".