343380921157 has 2 divisors, whose sum is σ = 343380921158. Its totient is φ = 343380921156.

The previous prime is 343380921139. The next prime is 343380921193. The reversal of 343380921157 is 751129083343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318969671076 + 24411250081 = 564774^2 + 156241^2 .

It is a cyclic number.

It is not a de Polignac number, because 343380921157 - 2⁷ = 343380921029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343384921157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171690460578 + 171690460579.

It is an arithmetic number, because the mean of its divisors is an integer number (171690460579).

Almost surely, 2^343380921157 is an apocalyptic number.

It is an amenable number.

343380921157 is a deficient number, since it is larger than the sum of its proper divisors (1).

343380921157 is an equidigital number, since it uses as much as digits as its factorization.

343380921157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 343380921157 in words is "three hundred forty-three billion, three hundred eighty million, nine hundred twenty-one thousand, one hundred fifty-seven".