345242205321 has 16 divisors (see below), whose sum is σ = 500843046144. Its totient is φ = 210266463744.

The previous prime is 345242205293. The next prime is 345242205331. The reversal of 345242205321 is 123502242543.

It is not a de Polignac number, because 345242205321 - 2⁹ = 345242204809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345242205331) 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, 45626961 + ... + 45634526.

It is an arithmetic number, because the mean of its divisors is an integer number (31302690384).

Almost surely, 2^345242205321 is an apocalyptic number.

It is an amenable number.

345242205321 is a deficient number, since it is larger than the sum of its proper divisors (155600840823).

345242205321 is a wasteful number, since it uses less digits than its factorization.

345242205321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91261600.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 345242205321 its reverse (123502242543), we get a palindrome (468744447864).

The spelling of 345242205321 in words is "three hundred forty-five billion, two hundred forty-two million, two hundred five thousand, three hundred twenty-one".