403004242134523 has 4 divisors (see below), whose sum is σ = 403034454625720. Its totient is φ = 402974029643328.

The previous prime is 403004242134479. The next prime is 403004242134553. The reversal of 403004242134523 is 325431242400304.

It is a happy number.

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-403004242134523 is a prime.

It is a super-2 number, since 2×403004242134523² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403004242134553) 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, 15106225590 + ... + 15106252267.

It is an arithmetic number, because the mean of its divisors is an integer number (100758613656430).

Almost surely, 2^{403004242134523} is an apocalyptic number.

403004242134523 is a deficient number, since it is larger than the sum of its proper divisors (30212491197).

403004242134523 is a wasteful number, since it uses less digits than its factorization.

403004242134523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30212491196.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 403004242134523 its reverse (325431242400304), we get a palindrome (728435484534827).

The spelling of 403004242134523 in words is "four hundred three trillion, four billion, two hundred forty-two million, one hundred thirty-four thousand, five hundred twenty-three".