513661030302 has 48 divisors (see below), whose sum is σ = 1227348904320. Its totient is φ = 140379405936.

The previous prime is 513661030297. The next prime is 513661030373. The reversal of 513661030302 is 203030166315.

It is a happy number.

It is a super-2 number, since 2×513661030302² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 513661030302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11537352 + ... + 11581787.

It is an arithmetic number, because the mean of its divisors is an integer number (25569768840).

Almost surely, 2^513661030302 is an apocalyptic number.

513661030302 is an abundant number, since it is smaller than the sum of its proper divisors (713687874018).

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

513661030302 is a wasteful number, since it uses less digits than its factorization.

513661030302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23119197 (or 23119174 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 513661030302 its reverse (203030166315), we get a palindrome (716691196617).

The spelling of 513661030302 in words is "five hundred thirteen billion, six hundred sixty-one million, thirty thousand, three hundred two".