513421640120 has 32 divisors (see below), whose sum is σ = 1156024548000. Its totient is φ = 205221836928.

The previous prime is 513421640111. The next prime is 513421640323. The reversal of 513421640120 is 21046124315.

It is a super-2 number, since 2×513421640120² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4531439 + ... + 4643358.

It is an arithmetic number, because the mean of its divisors is an integer number (36125767125).

Almost surely, 2^513421640120 is an apocalyptic number.

It is an amenable number.

513421640120 is an abundant number, since it is smaller than the sum of its proper divisors (642602907880).

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

513421640120 is a wasteful number, since it uses less digits than its factorization.

513421640120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176207 (or 9176203 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 513421640120 its reverse (21046124315), we get a palindrome (534467764435).

The spelling of 513421640120 in words is "five hundred thirteen billion, four hundred twenty-one million, six hundred forty thousand, one hundred twenty".