13121302213120 has 80 divisors (see below), whose sum is σ = 31592007089280. Its totient is φ = 5226560303104.

The previous prime is 13121302213079. The next prime is 13121302213121. The reversal of 13121302213120 is 2131220312131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 13121302213091 and 13121302213100.

It is not an unprimeable number, because it can be changed into a prime (13121302213121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10110982 + ... + 11334661.

It is an arithmetic number, because the mean of its divisors is an integer number (394900088616).

Almost surely, 2^{13121302213120} is an apocalyptic number.

13121302213120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121302213120 is an abundant number, since it is smaller than the sum of its proper divisors (18470704876160).

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

13121302213120 is an equidigital number, since it uses as much as digits as its factorization.

13121302213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21445905 (or 21445889 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13121302213120 its reverse (2131220312131), we get a palindrome (15252522525251).

The spelling of 13121302213120 in words is "thirteen trillion, one hundred twenty-one billion, three hundred two million, two hundred thirteen thousand, one hundred twenty".