244140143231 has 2 divisors, whose sum is σ = 244140143232. Its totient is φ = 244140143230.

The previous prime is 244140143227. The next prime is 244140143243. The reversal of 244140143231 is 132341041442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244140143231 - 2² = 244140143227 is a prime.

It is a super-2 number, since 2×244140143231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 244140143194 and 244140143203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244140145231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122070071615 + 122070071616.

It is an arithmetic number, because the mean of its divisors is an integer number (122070071616).

Almost surely, 2^244140143231 is an apocalyptic number.

244140143231 is a deficient number, since it is larger than the sum of its proper divisors (1).

244140143231 is an equidigital number, since it uses as much as digits as its factorization.

244140143231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 244140143231 its reverse (132341041442), we get a palindrome (376481184673).

The spelling of 244140143231 in words is "two hundred forty-four billion, one hundred forty million, one hundred forty-three thousand, two hundred thirty-one".