13121100030320 has 20 divisors (see below), whose sum is σ = 30506557570680. Its totient is φ = 5248440012096.

The previous prime is 13121100030281. The next prime is 13121100030323. The reversal of 13121100030320 is 2303000112131.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121100030323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82006875110 + ... + 82006875269.

It is an arithmetic number, because the mean of its divisors is an integer number (1525327878534).

Almost surely, 2^{13121100030320} is an apocalyptic number.

13121100030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121100030320 is an abundant number, since it is smaller than the sum of its proper divisors (17385457540360).

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

13121100030320 is a wasteful number, since it uses less digits than its factorization.

13121100030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164013750392 (or 164013750386 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13121100030320 its reverse (2303000112131), we get a palindrome (15424100142451).

The spelling of 13121100030320 in words is "thirteen trillion, one hundred twenty-one billion, one hundred million, thirty thousand, three hundred twenty".