440231101 has 2 divisors, whose sum is σ = 440231102. Its totient is φ = 440231100.

The previous prime is 440231089. The next prime is 440231117. The reversal of 440231101 is 101132044.

It is an a-pointer prime, because the next prime (440231117) can be obtained adding 440231101 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277056025 + 163175076 = 16645^2 + 12774^2 .

It is a cyclic number.

It is not a de Polignac number, because 440231101 - 2¹⁵ = 440198333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440231131) 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 as a sum of consecutive naturals, namely, 220115550 + 220115551.

It is an arithmetic number, because the mean of its divisors is an integer number (220115551).

Almost surely, 2^440231101 is an apocalyptic number.

It is an amenable number.

440231101 is a deficient number, since it is larger than the sum of its proper divisors (1).

440231101 is an equidigital number, since it uses as much as digits as its factorization.

440231101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 440231101 is about 20981.6848942119. The cubic root of 440231101 is about 760.7236303784.

Adding to 440231101 its reverse (101132044), we get a palindrome (541363145).

The spelling of 440231101 in words is "four hundred forty million, two hundred thirty-one thousand, one hundred one".