345311412321 has 16 divisors (see below), whose sum is σ = 485162706240. Its totient is φ = 217859618880.

The previous prime is 345311412319. The next prime is 345311412367. The reversal of 345311412321 is 123214113543.

It is not a de Polignac number, because 345311412321 - 2¹ = 345311412319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345311422321) 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, 3165330 + ... + 3272603.

It is an arithmetic number, because the mean of its divisors is an integer number (30322669140).

Almost surely, 2^345311412321 is an apocalyptic number.

It is an amenable number.

345311412321 is a deficient number, since it is larger than the sum of its proper divisors (139851293919).

345311412321 is a wasteful number, since it uses less digits than its factorization.

345311412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438896.

The product of its digits is 8640, while the sum is 30.

Adding to 345311412321 its reverse (123214113543), we get a palindrome (468525525864).

The spelling of 345311412321 in words is "three hundred forty-five billion, three hundred eleven million, four hundred twelve thousand, three hundred twenty-one".