1444211231 has 2 divisors, whose sum is σ = 1444211232. Its totient is φ = 1444211230.

The previous prime is 1444211227. The next prime is 1444211273. The reversal of 1444211231 is 1321124441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1444211231 - 2² = 1444211227 is a prime.

It is a super-2 number, since 2×1444211231² = 4171492159493070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1444211197 and 1444211206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444511231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722105615 + 722105616.

It is an arithmetic number, because the mean of its divisors is an integer number (722105616).

Almost surely, 2^1444211231 is an apocalyptic number.

1444211231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444211231 is an equidigital number, since it uses as much as digits as its factorization.

1444211231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 1444211231 is about 38002.7792536283. The cubic root of 1444211231 is about 1130.3429744404.

Adding to 1444211231 its reverse (1321124441), we get a palindrome (2765335672).

The spelling of 1444211231 in words is "one billion, four hundred forty-four million, two hundred eleven thousand, two hundred thirty-one".