402144241111 has 2 divisors, whose sum is σ = 402144241112. Its totient is φ = 402144241110.

The previous prime is 402144241097. The next prime is 402144241141. The reversal of 402144241111 is 111142441204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402144241111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402144241141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201072120555 + 201072120556.

It is an arithmetic number, because the mean of its divisors is an integer number (201072120556).

Almost surely, 2^402144241111 is an apocalyptic number.

402144241111 is a deficient number, since it is larger than the sum of its proper divisors (1).

402144241111 is an equidigital number, since it uses as much as digits as its factorization.

402144241111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 402144241111 its reverse (111142441204), we get a palindrome (513286682315).

The spelling of 402144241111 in words is "four hundred two billion, one hundred forty-four million, two hundred forty-one thousand, one hundred eleven".