345184430021 has 4 divisors (see below), whose sum is σ = 345187644672. Its totient is φ = 345181215372.

The previous prime is 345184429979. The next prime is 345184430027. The reversal of 345184430021 is 120034481543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345184430021 - 2⁶ = 345184429957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345184430027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440485 + ... + 1662938.

It is an arithmetic number, because the mean of its divisors is an integer number (86296911168).

Almost surely, 2^345184430021 is an apocalyptic number.

It is an amenable number.

345184430021 is a deficient number, since it is larger than the sum of its proper divisors (3214651).

345184430021 is a wasteful number, since it uses less digits than its factorization.

345184430021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214650.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 345184430021 in words is "three hundred forty-five billion, one hundred eighty-four million, four hundred thirty thousand, twenty-one".