405013505203 has 4 divisors (see below), whose sum is σ = 407112020968. Its totient is φ = 402914989440.

The previous prime is 405013505153. The next prime is 405013505207. The reversal of 405013505203 is 302505310504.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405013505203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405013505207) 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, 1049257593 + ... + 1049257978.

It is an arithmetic number, because the mean of its divisors is an integer number (101778005242).

Almost surely, 2^405013505203 is an apocalyptic number.

405013505203 is a deficient number, since it is larger than the sum of its proper divisors (2098515765).

405013505203 is a wasteful number, since it uses less digits than its factorization.

405013505203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098515764.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 405013505203 its reverse (302505310504), we get a palindrome (707518815707).

The spelling of 405013505203 in words is "four hundred five billion, thirteen million, five hundred five thousand, two hundred three".