513320121044 has 12 divisors (see below), whose sum is σ = 945589696800. Its totient is φ = 243151636248.

The previous prime is 513320121037. The next prime is 513320121071. The reversal of 513320121044 is 440121023315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3377105984 + ... + 3377106135.

It is an arithmetic number, because the mean of its divisors is an integer number (78799141400).

Almost surely, 2^513320121044 is an apocalyptic number.

It is an amenable number.

513320121044 is a deficient number, since it is larger than the sum of its proper divisors (432269575756).

513320121044 is a wasteful number, since it uses less digits than its factorization.

513320121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754212142 (or 6754212140 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 513320121044 its reverse (440121023315), we get a palindrome (953441144359).

The spelling of 513320121044 in words is "five hundred thirteen billion, three hundred twenty million, one hundred twenty-one thousand, forty-four".