340211442121 has 2 divisors, whose sum is σ = 340211442122. Its totient is φ = 340211442120.

The previous prime is 340211442083. The next prime is 340211442157. The reversal of 340211442121 is 121244112043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337635372096 + 2576070025 = 581064^2 + 50755^2 .

It is a cyclic number.

It is not a de Polignac number, because 340211442121 - 2¹⁵ = 340211409353 is a prime.

It is not a weakly prime, because it can be changed into another prime (340211442161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170105721060 + 170105721061.

It is an arithmetic number, because the mean of its divisors is an integer number (170105721061).

Almost surely, 2^340211442121 is an apocalyptic number.

It is an amenable number.

340211442121 is a deficient number, since it is larger than the sum of its proper divisors (1).

340211442121 is an equidigital number, since it uses as much as digits as its factorization.

340211442121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 340211442121 its reverse (121244112043), we get a palindrome (461455554164).

The spelling of 340211442121 in words is "three hundred forty billion, two hundred eleven million, four hundred forty-two thousand, one hundred twenty-one".