12430540405 has 12 divisors (see below), whose sum is σ = 15271626060. Its totient is φ = 9713159232.

The previous prime is 12430540399. The next prime is 12430540457. The reversal of 12430540405 is 50404503421.

It can be written as a sum of positive squares in 2 ways, for example, as 3691656081 + 8738884324 = 60759^2 + 93482^2 .

It is not a de Polignac number, because 12430540405 - 2¹¹ = 12430538357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 663040 + ... + 681529.

It is an arithmetic number, because the mean of its divisors is an integer number (1272635505).

Almost surely, 2^12430540405 is an apocalyptic number.

It is an amenable number.

12430540405 is a deficient number, since it is larger than the sum of its proper divisors (2841085655).

12430540405 is an equidigital number, since it uses as much as digits as its factorization.

12430540405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344660 (or 1344617 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 12430540405 in words is "twelve billion, four hundred thirty million, five hundred forty thousand, four hundred five".