345188421107 has 4 divisors (see below), whose sum is σ = 345193592736. Its totient is φ = 345183249480.

The previous prime is 345188421049. The next prime is 345188421113. The reversal of 345188421107 is 701124881543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345188421107 - 2⁶ = 345188421043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345188424107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2484368 + ... + 2619629.

It is an arithmetic number, because the mean of its divisors is an integer number (86298398184).

Almost surely, 2^345188421107 is an apocalyptic number.

345188421107 is a deficient number, since it is larger than the sum of its proper divisors (5171629).

345188421107 is an equidigital number, since it uses as much as digits as its factorization.

345188421107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171628.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 345188421107 in words is "three hundred forty-five billion, one hundred eighty-eight million, four hundred twenty-one thousand, one hundred seven".