343030021243 has 32 divisors (see below), whose sum is σ = 426360485376. Its totient is φ = 268730535168.

The previous prime is 343030021237. The next prime is 343030021247. The reversal of 343030021243 is 342120030343.

It is a cyclic number.

It is not a de Polignac number, because 343030021243 - 2⁵ = 343030021211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343030021247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20955580 + ... + 20971942.

It is an arithmetic number, because the mean of its divisors is an integer number (13323765168).

Almost surely, 2^343030021243 is an apocalyptic number.

343030021243 is a deficient number, since it is larger than the sum of its proper divisors (83330464133).

343030021243 is a wasteful number, since it uses less digits than its factorization.

343030021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18643.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 343030021243 its reverse (342120030343), we get a palindrome (685150051586).

It can be divided in two parts, 3430300 and 21243, that added together give a palindrome (3451543).

The spelling of 343030021243 in words is "three hundred forty-three billion, thirty million, twenty-one thousand, two hundred forty-three".