305742347013 has 4 divisors (see below), whose sum is σ = 407656462688. Its totient is φ = 203828231340.

The previous prime is 305742346991. The next prime is 305742347033. The reversal of 305742347013 is 310743247503.

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 not a de Polignac number, because 305742347013 - 2¹⁰ = 305742345989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305742347033) 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, 50957057833 + ... + 50957057838.

It is an arithmetic number, because the mean of its divisors is an integer number (101914115672).

Almost surely, 2^305742347013 is an apocalyptic number.

It is an amenable number.

305742347013 is a deficient number, since it is larger than the sum of its proper divisors (101914115675).

305742347013 is a wasteful number, since it uses less digits than its factorization.

305742347013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101914115674.

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 305742347013 in words is "three hundred five billion, seven hundred forty-two million, three hundred forty-seven thousand, thirteen".