13127229813820 has 96 divisors (see below), whose sum is σ = 28885966921728. Its totient is φ = 5001645065472.

The previous prime is 13127229813773. The next prime is 13127229813857. The reversal of 13127229813820 is 2831892272131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110791129 + ... + 110909551.

It is an arithmetic number, because the mean of its divisors is an integer number (300895488768).

Almost surely, 2^{13127229813820} is an apocalyptic number.

13127229813820 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 13127229813820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14442983460864).

13127229813820 is an abundant number, since it is smaller than the sum of its proper divisors (15758737107908).

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

13127229813820 is a wasteful number, since it uses less digits than its factorization.

13127229813820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119459 (or 119457 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 13127229813820 in words is "thirteen trillion, one hundred twenty-seven billion, two hundred twenty-nine million, eight hundred thirteen thousand, eight hundred twenty".