340212315217 has 2 divisors, whose sum is σ = 340212315218. Its totient is φ = 340212315216.

The previous prime is 340212315151. The next prime is 340212315283. The reversal of 340212315217 is 712513212043.

It is a balanced prime because it is at equal distance from previous prime (340212315151) and next prime (340212315283).

It can be written as a sum of positive squares in only one way, i.e., 335297744401 + 4914570816 = 579049^2 + 70104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340212315217 is a prime.

It is a super-2 number, since 2×340212315217² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340212315617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170106157608 + 170106157609.

It is an arithmetic number, because the mean of its divisors is an integer number (170106157609).

Almost surely, 2^340212315217 is an apocalyptic number.

It is an amenable number.

340212315217 is a deficient number, since it is larger than the sum of its proper divisors (1).

340212315217 is an equidigital number, since it uses as much as digits as its factorization.

340212315217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 340212315217 in words is "three hundred forty billion, two hundred twelve million, three hundred fifteen thousand, two hundred seventeen".