344404143214121 has 8 divisors (see below), whose sum is σ = 348017604467400. Its totient is φ = 340794672534400.

The previous prime is 344404143214069. The next prime is 344404143214133. The reversal of 344404143214121 is 121412341404443.

It can be written as a sum of positive squares in 4 ways, for example, as 130426929452521 + 213977213761600 = 11420461^2 + 14627960^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344404143214121 is a prime.

It is a super-2 number, since 2×344404143214121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344404143214171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997469876 + ... + 997815093.

It is an arithmetic number, because the mean of its divisors is an integer number (43502200558425).

Almost surely, 2^{344404143214121} is an apocalyptic number.

It is an amenable number.

344404143214121 is a deficient number, since it is larger than the sum of its proper divisors (3613461253279).

344404143214121 is a wasteful number, since it uses less digits than its factorization.

344404143214121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995286779.

The product of its (nonzero) digits is 147456, while the sum is 38.

Adding to 344404143214121 its reverse (121412341404443), we get a palindrome (465816484618564).

The spelling of 344404143214121 in words is "three hundred forty-four trillion, four hundred four billion, one hundred forty-three million, two hundred fourteen thousand, one hundred twenty-one".