1244430111 has 16 divisors (see below), whose sum is σ = 1735534080. Its totient is φ = 791646240.

The previous prime is 1244430091. The next prime is 1244430133. The reversal of 1244430111 is 1110344421.

It is not a de Polignac number, because 1244430111 - 2¹¹ = 1244428063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244230111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7630 + ... + 50468.

It is an arithmetic number, because the mean of its divisors is an integer number (108470880).

Almost surely, 2^1244430111 is an apocalyptic number.

1244430111 is a deficient number, since it is larger than the sum of its proper divisors (491103969).

1244430111 is a wasteful number, since it uses less digits than its factorization.

1244430111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43286.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1244430111 is about 35276.4809894638. The cubic root of 1244430111 is about 1075.6149676928.

Adding to 1244430111 its reverse (1110344421), we get a palindrome (2354774532).

The spelling of 1244430111 in words is "one billion, two hundred forty-four million, four hundred thirty thousand, one hundred eleven".