402144343243 has 2 divisors, whose sum is σ = 402144343244. Its totient is φ = 402144343242.

The previous prime is 402144343229. The next prime is 402144343273. The reversal of 402144343243 is 342343441204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402144343243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402144343199 and 402144343208.

It is not a weakly prime, because it can be changed into another prime (402144343213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201072171621 + 201072171622.

It is an arithmetic number, because the mean of its divisors is an integer number (201072171622).

Almost surely, 2^402144343243 is an apocalyptic number.

402144343243 is a deficient number, since it is larger than the sum of its proper divisors (1).

402144343243 is an equidigital number, since it uses as much as digits as its factorization.

402144343243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 402144343243 its reverse (342343441204), we get a palindrome (744487784447).

The spelling of 402144343243 in words is "four hundred two billion, one hundred forty-four million, three hundred forty-three thousand, two hundred forty-three".