402144434313 has 4 divisors (see below), whose sum is σ = 536192579088. Its totient is φ = 268096289540.

The previous prime is 402144434309. The next prime is 402144434339. The reversal of 402144434313 is 313434441204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402144434313 - 2² = 402144434309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402144434213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67024072383 + ... + 67024072388.

It is an arithmetic number, because the mean of its divisors is an integer number (134048144772).

Almost surely, 2^402144434313 is an apocalyptic number.

It is an amenable number.

402144434313 is a deficient number, since it is larger than the sum of its proper divisors (134048144775).

402144434313 is a wasteful number, since it uses less digits than its factorization.

402144434313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134048144774.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 402144434313 its reverse (313434441204), we get a palindrome (715578875517).

The spelling of 402144434313 in words is "four hundred two billion, one hundred forty-four million, four hundred thirty-four thousand, three hundred thirteen".