9911423441 has 4 divisors (see below), whose sum is σ = 9914185572. Its totient is φ = 9908661312.

The previous prime is 9911423437. The next prime is 9911423461. The reversal of 9911423441 is 1443241199.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5486513041 + 4424910400 = 74071^2 + 66520^2 .

It is a cyclic number.

It is not a de Polignac number, because 9911423441 - 2² = 9911423437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9911423395 and 9911423404.

It is not an unprimeable number, because it can be changed into a prime (9911423461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375676 + ... + 1382861.

It is an arithmetic number, because the mean of its divisors is an integer number (2478546393).

Almost surely, 2^9911423441 is an apocalyptic number.

It is an amenable number.

9911423441 is a deficient number, since it is larger than the sum of its proper divisors (2762131).

9911423441 is a wasteful number, since it uses less digits than its factorization.

9911423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762130.

The product of its digits is 31104, while the sum is 38.

The square root of 9911423441 is about 99556.1321114877. The cubic root of 9911423441 is about 2148.0547352592.

The spelling of 9911423441 in words is "nine billion, nine hundred eleven million, four hundred twenty-three thousand, four hundred forty-one".