503040122401 has 4 divisors (see below), whose sum is σ = 503051039812. Its totient is φ = 503029204992.

The previous prime is 503040122399. The next prime is 503040122419. The reversal of 503040122401 is 104221040305.

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 93254501376 + 409785621025 = 305376^2 + 640145^2 .

It is a cyclic number.

It is not a de Polignac number, because 503040122401 - 2¹ = 503040122399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503043122401) 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, 5389296 + ... + 5481841.

It is an arithmetic number, because the mean of its divisors is an integer number (125762759953).

Almost surely, 2^503040122401 is an apocalyptic number.

It is an amenable number.

503040122401 is a deficient number, since it is larger than the sum of its proper divisors (10917411).

503040122401 is a wasteful number, since it uses less digits than its factorization.

503040122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10917410.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 503040122401 its reverse (104221040305), we get a palindrome (607261162706).

The spelling of 503040122401 in words is "five hundred three billion, forty million, one hundred twenty-two thousand, four hundred one".