343311341440431 has 64 divisors (see below), whose sum is σ = 593398946201600. Its totient is φ = 171450942800256.

The previous prime is 343311341440399. The next prime is 343311341440447. The reversal of 343311341440431 is 134044143113343.

It is a happy number.

It is not a de Polignac number, because 343311341440431 - 2⁵ = 343311341440399 is a prime.

It is a super-2 number, since 2×343311341440431² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 343311341440431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343311341440451) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11900911 + ... + 28779408.

It is an arithmetic number, because the mean of its divisors is an integer number (9271858534400).

Almost surely, 2^{343311341440431} is an apocalyptic number.

343311341440431 is a deficient number, since it is larger than the sum of its proper divisors (250087604761169).

343311341440431 is a wasteful number, since it uses less digits than its factorization.

343311341440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40681988.

The product of its (nonzero) digits is 248832, while the sum is 39.

Adding to 343311341440431 its reverse (134044143113343), we get a palindrome (477355484553774).

The spelling of 343311341440431 in words is "three hundred forty-three trillion, three hundred eleven billion, three hundred forty-one million, four hundred forty thousand, four hundred thirty-one".