503040100051 has 4 divisors (see below), whose sum is σ = 509100824232. Its totient is φ = 496979375872.

The previous prime is 503040100049. The next prime is 503040100067. The reversal of 503040100051 is 150001040305.

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

It is a cyclic number.

It is not a de Polignac number, because 503040100051 - 2¹ = 503040100049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503040103051) 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, 3030361966 + ... + 3030362131.

It is an arithmetic number, because the mean of its divisors is an integer number (127275206058).

Almost surely, 2^503040100051 is an apocalyptic number.

503040100051 is a deficient number, since it is larger than the sum of its proper divisors (6060724181).

503040100051 is an equidigital number, since it uses as much as digits as its factorization.

503040100051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060724180.

The product of its (nonzero) digits is 300, while the sum is 19.

Adding to 503040100051 its reverse (150001040305), we get a palindrome (653041140356).

The spelling of 503040100051 in words is "five hundred three billion, forty million, one hundred thousand, fifty-one".