513352121442 has 16 divisors (see below), whose sum is σ = 1071343558080. Its totient is φ = 163677487952.

The previous prime is 513352121411. The next prime is 513352121507. The reversal of 513352121442 is 244121253315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859971317 + ... + 1859971592.

It is an arithmetic number, because the mean of its divisors is an integer number (66958972380).

Almost surely, 2^513352121442 is an apocalyptic number.

513352121442 is an abundant number, since it is smaller than the sum of its proper divisors (557991436638).

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

513352121442 is a wasteful number, since it uses less digits than its factorization.

513352121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719942937.

The product of its digits is 28800, while the sum is 33.

Adding to 513352121442 its reverse (244121253315), we get a palindrome (757473374757).

The spelling of 513352121442 in words is "five hundred thirteen billion, three hundred fifty-two million, one hundred twenty-one thousand, four hundred forty-two".