343140152721 has 16 divisors (see below), whose sum is σ = 459122378880. Its totient is φ = 227960288640.

The previous prime is 343140152689. The next prime is 343140152737. The reversal of 343140152721 is 127251041343.

It is not a de Polignac number, because 343140152721 - 2⁵ = 343140152689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343140152321) 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, 922581 + ... + 1239933.

It is an arithmetic number, because the mean of its divisors is an integer number (28695148680).

Almost surely, 2^343140152721 is an apocalyptic number.

It is an amenable number.

343140152721 is a deficient number, since it is larger than the sum of its proper divisors (115982226159).

343140152721 is a wasteful number, since it uses less digits than its factorization.

343140152721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318616.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 343140152721 in words is "three hundred forty-three billion, one hundred forty million, one hundred fifty-two thousand, seven hundred twenty-one".