345311423 has 4 divisors (see below), whose sum is σ = 350972328. Its totient is φ = 339650520.

The previous prime is 345311399. The next prime is 345311437. The reversal of 345311423 is 324113543.

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 345311423 - 2¹⁴ = 345295039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345311392 and 345311401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345311023) 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, 2830361 + ... + 2830482.

It is an arithmetic number, because the mean of its divisors is an integer number (87743082).

Almost surely, 2^345311423 is an apocalyptic number.

345311423 is a deficient number, since it is larger than the sum of its proper divisors (5660905).

345311423 is an equidigital number, since it uses as much as digits as its factorization.

345311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660904.

The product of its digits is 4320, while the sum is 26.

The square root of 345311423 is about 18582.5569553816. The cubic root of 345311423 is about 701.5688777184.

Adding to 345311423 its reverse (324113543), we get a palindrome (669424966).

The spelling of 345311423 in words is "three hundred forty-five million, three hundred eleven thousand, four hundred twenty-three".