343222311031 has 4 divisors (see below), whose sum is σ = 343367071864. Its totient is φ = 343077550200.

The previous prime is 343222310993. The next prime is 343222311067. The reversal of 343222311031 is 130113222343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130113222343 = 13 ⋅10008709411.

It is a cyclic number.

It is not a de Polignac number, because 343222311031 - 2⁷ = 343222310903 is a prime.

It is a super-2 number, since 2×343222311031² (a number of 24 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 = 343222310987 and 343222311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343222311431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72376860 + ... + 72381601.

It is an arithmetic number, because the mean of its divisors is an integer number (85841767966).

Almost surely, 2^343222311031 is an apocalyptic number.

343222311031 is a deficient number, since it is larger than the sum of its proper divisors (144760833).

343222311031 is a wasteful number, since it uses less digits than its factorization.

343222311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144760832.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 343222311031 its reverse (130113222343), we get a palindrome (473335533374).

The spelling of 343222311031 in words is "three hundred forty-three billion, two hundred twenty-two million, three hundred eleven thousand, thirty-one".