404312012520403 has 64 divisors (see below), whose sum is σ = 486326043141120. Its totient is φ = 332494957555200.

The previous prime is 404312012520397. The next prime is 404312012520443. The reversal of 404312012520403 is 304025210213404.

It is a de Polignac number, because none of the positive numbers 2^k-404312012520403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404312012520443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 738205125 + ... + 738752617.

It is an arithmetic number, because the mean of its divisors is an integer number (7598844424080).

Almost surely, 2^{404312012520403} is an apocalyptic number.

404312012520403 is a deficient number, since it is larger than the sum of its proper divisors (82014030620717).

404312012520403 is a wasteful number, since it uses less digits than its factorization.

404312012520403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549740.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 404312012520403 its reverse (304025210213404), we get a palindrome (708337222733807).

The spelling of 404312012520403 in words is "four hundred four trillion, three hundred twelve billion, twelve million, five hundred twenty thousand, four hundred three".