344400111111243 has 16 divisors (see below), whose sum is σ = 500950734276096. Its totient is φ = 208725207519840.

The previous prime is 344400111111157. The next prime is 344400111111257. The reversal of 344400111111243 is 342111111004443.

It is not a de Polignac number, because 344400111111243 - 2¹² = 344400111107147 is a prime.

It is a super-2 number, since 2×344400111111243² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 344400111111243.

It is not an unprimeable number, because it can be changed into a prime (344400111111283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50031796 + ... + 56497617.

It is an arithmetic number, because the mean of its divisors is an integer number (31309420892256).

Almost surely, 2^{344400111111243} is an apocalyptic number.

344400111111243 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

344400111111243 is a deficient number, since it is larger than the sum of its proper divisors (156550623164853).

344400111111243 is a wasteful number, since it uses less digits than its factorization.

344400111111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106627394.

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 344400111111243 its reverse (342111111004443), we get a palindrome (686511222115686).

The spelling of 344400111111243 in words is "three hundred forty-four trillion, four hundred billion, one hundred eleven million, one hundred eleven thousand, two hundred forty-three".