12101012343420 has 1152 divisors, whose sum is σ = 47664809966592. Its totient is φ = 2253223526400.

The previous prime is 12101012343397. The next prime is 12101012343439. The reversal of 12101012343420 is 2434321010121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 13704430299 + ... + 13704431181.

It is an arithmetic number, because the mean of its divisors is an integer number (41375703096).

Almost surely, 2^{12101012343420} is an apocalyptic number.

12101012343420 is a gapful number since it is divisible by the number (10) 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 12101012343420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23832404983296).

12101012343420 is an abundant number, since it is smaller than the sum of its proper divisors (35563797623172).

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

12101012343420 is a wasteful number, since it uses less digits than its factorization.

12101012343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851 (or 1842 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12101012343420 its reverse (2434321010121), we get a palindrome (14535333353541).

The spelling of 12101012343420 in words is "twelve trillion, one hundred one billion, twelve million, three hundred forty-three thousand, four hundred twenty".