30431041405 has 4 divisors (see below), whose sum is σ = 36517249692. Its totient is φ = 24344833120.

The previous prime is 30431041397. The next prime is 30431041447. The reversal of 30431041405 is 50414013403.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8694257049 + 21736784356 = 93243^2 + 147434^2 .

It is not a de Polignac number, because 30431041405 - 2³ = 30431041397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30431041405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043104136 + ... + 3043104145.

It is an arithmetic number, because the mean of its divisors is an integer number (9129312423).

Almost surely, 2^30431041405 is an apocalyptic number.

It is an amenable number.

30431041405 is a deficient number, since it is larger than the sum of its proper divisors (6086208287).

30431041405 is an equidigital number, since it uses as much as digits as its factorization.

30431041405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086208286.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 30431041405 its reverse (50414013403), we get a palindrome (80845054808).

The spelling of 30431041405 in words is "thirty billion, four hundred thirty-one million, forty-one thousand, four hundred five".