503121131052 has 48 divisors (see below), whose sum is σ = 1202090856960. Its totient is φ = 163705655232.

The previous prime is 503121131003. The next prime is 503121131057. The reversal of 503121131052 is 250131121305.

It is a super-2 number, since 2×503121131052² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (503121131057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963103 + ... + 1390614.

It is an arithmetic number, because the mean of its divisors is an integer number (25043559520).

Almost surely, 2^503121131052 is an apocalyptic number.

It is an amenable number.

503121131052 is an abundant number, since it is smaller than the sum of its proper divisors (698969725908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503121131052 is a wasteful number, since it uses less digits than its factorization.

503121131052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354150 (or 2354148 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 503121131052 its reverse (250131121305), we get a palindrome (753252252357).

The spelling of 503121131052 in words is "five hundred three billion, one hundred twenty-one million, one hundred thirty-one thousand, fifty-two".