343121002031 has 8 divisors (see below), whose sum is σ = 343841747040. Its totient is φ = 342400440928.

The previous prime is 343121002019. The next prime is 343121002061. The reversal of 343121002031 is 130200121343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343121002031 is a prime.

It is a super-2 number, since 2×343121002031² (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 = 343121001994 and 343121002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343121002061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4074605 + ... + 4157961.

It is an arithmetic number, because the mean of its divisors is an integer number (42980218380).

Almost surely, 2^343121002031 is an apocalyptic number.

343121002031 is a deficient number, since it is larger than the sum of its proper divisors (720745009).

343121002031 is an equidigital number, since it uses as much as digits as its factorization.

343121002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91953.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 343121002031 its reverse (130200121343), we get a palindrome (473321123374).

The spelling of 343121002031 in words is "three hundred forty-three billion, one hundred twenty-one million, two thousand, thirty-one".