351144343121111 has 2 divisors, whose sum is σ = 351144343121112. Its totient is φ = 351144343121110.

The previous prime is 351144343121107. The next prime is 351144343121129. The reversal of 351144343121111 is 111121343441153.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 351144343121111 - 2² = 351144343121107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351144343121711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175572171560555 + 175572171560556.

It is an arithmetic number, because the mean of its divisors is an integer number (175572171560556).

Almost surely, 2^{351144343121111} is an apocalyptic number.

351144343121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

351144343121111 is an equidigital number, since it uses as much as digits as its factorization.

351144343121111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

Adding to 351144343121111 its reverse (111121343441153), we get a palindrome (462265686562264).

The spelling of 351144343121111 in words is "three hundred fifty-one trillion, one hundred forty-four billion, three hundred forty-three million, one hundred twenty-one thousand, one hundred eleven".