343121403432 has 64 divisors (see below), whose sum is σ = 882998988480. Its totient is φ = 111058900992.

The previous prime is 343121403431. The next prime is 343121403451. The reversal of 343121403432 is 234304121343.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 343121403432.

It is not an unprimeable number, because it can be changed into a prime (343121403431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1267078 + ... + 1513845.

It is an arithmetic number, because the mean of its divisors is an integer number (13796859195).

Almost surely, 2^343121403432 is an apocalyptic number.

It is an amenable number.

343121403432 is an abundant number, since it is smaller than the sum of its proper divisors (539877585048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343121403432 is a wasteful number, since it uses less digits than its factorization.

343121403432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781082 (or 2781078 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 343121403432 its reverse (234304121343), we get a palindrome (577425524775).

The spelling of 343121403432 in words is "three hundred forty-three billion, one hundred twenty-one million, four hundred three thousand, four hundred thirty-two".