343140100043231 has 4 divisors (see below), whose sum is σ = 343182784477200. Its totient is φ = 343097415609264.

The previous prime is 343140100043149. The next prime is 343140100043291. The reversal of 343140100043231 is 132340001041343.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343140100043231 is a prime.

It is a super-2 number, since 2×343140100043231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343140100043194 and 343140100043203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343140100043291) 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, 21342204926 + ... + 21342221003.

It is an arithmetic number, because the mean of its divisors is an integer number (85795696119300).

Almost surely, 2^{343140100043231} is an apocalyptic number.

343140100043231 is a deficient number, since it is larger than the sum of its proper divisors (42684433969).

343140100043231 is an equidigital number, since it uses as much as digits as its factorization.

343140100043231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42684433968.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 343140100043231 its reverse (132340001041343), we get a palindrome (475480101084574).

The spelling of 343140100043231 in words is "three hundred forty-three trillion, one hundred forty billion, one hundred million, forty-three thousand, two hundred thirty-one".