343120031 has 12 divisors (see below), whose sum is σ = 364617000. Its totient is φ = 322828848.

The previous prime is 343119983. The next prime is 343120051. The reversal of 343120031 is 130021343.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-343120031 is a prime.

It is a super-2 number, since 2×343120031² = 235462711346881922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343119991 and 343120009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343120051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50600 + ... + 56978.

It is an arithmetic number, because the mean of its divisors is an integer number (30384750).

Almost surely, 2^343120031 is an apocalyptic number.

343120031 is a deficient number, since it is larger than the sum of its proper divisors (21496969).

343120031 is a wasteful number, since it uses less digits than its factorization.

343120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566 (or 6547 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 343120031 is about 18523.4994264043. The cubic root of 343120031 is about 700.0816442186.

Adding to 343120031 its reverse (130021343), we get a palindrome (473141374).

The spelling of 343120031 in words is "three hundred forty-three million, one hundred twenty thousand, thirty-one".