613102320 has 120 divisors (see below), whose sum is σ = 2079634752. Its totient is φ = 161856000.

The previous prime is 613102309. The next prime is 613102333. The reversal of 613102320 is 23201316.

613102320 is a `hidden beast` number, since 613 + 10 + 23 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 613102293 and 613102302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68505 + ... + 76935.

Almost surely, 2^613102320 is an apocalyptic number.

613102320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613102320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1039817376).

613102320 is an abundant number, since it is smaller than the sum of its proper divisors (1466532432).

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

613102320 is a wasteful number, since it uses less digits than its factorization.

613102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551 (or 8542 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 613102320 is about 24760.9030529987. The cubic root of 613102320 is about 849.5279131705.

Adding to 613102320 its reverse (23201316), we get a palindrome (636303636).

The spelling of 613102320 in words is "six hundred thirteen million, one hundred two thousand, three hundred twenty".