343421131021331 has 4 divisors (see below), whose sum is σ = 374641233841464. Its totient is φ = 312201028201200.

The previous prime is 343421131021271. The next prime is 343421131021391. The reversal of 343421131021331 is 133120131124343.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (343421131021271) and next prime (343421131021391).

It is a cyclic number.

It is not a de Polignac number, because 343421131021331 - 2²⁶ = 343421063912467 is a prime.

It is a super-3 number, since 3×343421131021331³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343421131021391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15610051410050 + ... + 15610051410071.

It is an arithmetic number, because the mean of its divisors is an integer number (93660308460366).

Almost surely, 2^{343421131021331} is an apocalyptic number.

343421131021331 is a deficient number, since it is larger than the sum of its proper divisors (31220102820133).

343421131021331 is a wasteful number, since it uses less digits than its factorization.

343421131021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31220102820132.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 343421131021331 its reverse (133120131124343), we get a palindrome (476541262145674).

The spelling of 343421131021331 in words is "three hundred forty-three trillion, four hundred twenty-one billion, one hundred thirty-one million, twenty-one thousand, three hundred thirty-one".