13120321230 has 96 divisors (see below), whose sum is σ = 35816320800. Its totient is φ = 3327641856.

The previous prime is 13120321223. The next prime is 13120321241. The reversal of 13120321230 is 3212302131.

13120321230 is a `hidden beast` number, since 1 + 312 + 0 + 321 + 2 + 30 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137356 + ... + 212384.

It is an arithmetic number, because the mean of its divisors is an integer number (373086675).

Almost surely, 2^13120321230 is an apocalyptic number.

13120321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13120321230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17908160400).

13120321230 is an abundant number, since it is smaller than the sum of its proper divisors (22695999570).

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

13120321230 is a wasteful number, since it uses less digits than its factorization.

13120321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75138 (or 75135 counting only the distinct ones).

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

Adding to 13120321230 its reverse (3212302131), we get a palindrome (16332623361).

The spelling of 13120321230 in words is "thirteen billion, one hundred twenty million, three hundred twenty-one thousand, two hundred thirty".