345112102212321 has 16 divisors (see below), whose sum is σ = 470871093217536. Its totient is φ = 224714388306576.

The previous prime is 345112102212277. The next prime is 345112102212337. The reversal of 345112102212321 is 123212201211543.

It is not a de Polignac number, because 345112102212321 - 2¹⁵ = 345112102179553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345112102212341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55183455 + ... + 61118228.

It is an arithmetic number, because the mean of its divisors is an integer number (29429443326096).

Almost surely, 2^{345112102212321} is an apocalyptic number.

It is an amenable number.

345112102212321 is a deficient number, since it is larger than the sum of its proper divisors (125758991005215).

345112102212321 is a wasteful number, since it uses less digits than its factorization.

345112102212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116324732.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 345112102212321 its reverse (123212201211543), we get a palindrome (468324303423864).

The spelling of 345112102212321 in words is "three hundred forty-five trillion, one hundred twelve billion, one hundred two million, two hundred twelve thousand, three hundred twenty-one".