344421353303 has 4 divisors (see below), whose sum is σ = 344475522480. Its totient is φ = 344367184128.

The previous prime is 344421353249. The next prime is 344421353321. The reversal of 344421353303 is 303353124443.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344421353303 is a prime.

It is a super-2 number, since 2×344421353303² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344421353203) 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, 27075050 + ... + 27087767.

It is an arithmetic number, because the mean of its divisors is an integer number (86118880620).

Almost surely, 2^344421353303 is an apocalyptic number.

344421353303 is a deficient number, since it is larger than the sum of its proper divisors (54169177).

344421353303 is an equidigital number, since it uses as much as digits as its factorization.

344421353303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54169176.

The product of its (nonzero) digits is 155520, while the sum is 35.

Adding to 344421353303 its reverse (303353124443), we get a palindrome (647774477746).

The spelling of 344421353303 in words is "three hundred forty-four billion, four hundred twenty-one million, three hundred fifty-three thousand, three hundred three".