343215131969 has 2 divisors, whose sum is σ = 343215131970. Its totient is φ = 343215131968.

The previous prime is 343215131927. The next prime is 343215132017. The reversal of 343215131969 is 969131512343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343044490000 + 170641969 = 585700^2 + 13063^2 .

It is a cyclic number.

It is not a de Polignac number, because 343215131969 - 2³² = 338920164673 is a prime.

It is a super-2 number, since 2×343215131969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343215131269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171607565984 + 171607565985.

It is an arithmetic number, because the mean of its divisors is an integer number (171607565985).

Almost surely, 2^343215131969 is an apocalyptic number.

It is an amenable number.

343215131969 is a deficient number, since it is larger than the sum of its proper divisors (1).

343215131969 is an equidigital number, since it uses as much as digits as its factorization.

343215131969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 47.

The spelling of 343215131969 in words is "three hundred forty-three billion, two hundred fifteen million, one hundred thirty-one thousand, nine hundred sixty-nine".