13124211111020 has 48 divisors (see below), whose sum is σ = 28022682975168. Its totient is φ = 5161776572160.

The previous prime is 13124211111017. The next prime is 13124211111127. The reversal of 13124211111020 is 2011111242131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13124211110983 and 13124211111001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489289 + ... + 5335391.

It is an arithmetic number, because the mean of its divisors is an integer number (583805895316).

Almost surely, 2^{13124211111020} is an apocalyptic number.

13124211111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13124211111020 is an abundant number, since it is smaller than the sum of its proper divisors (14898471864148).

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

13124211111020 is a wasteful number, since it uses less digits than its factorization.

13124211111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848970 (or 3848968 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 13124211111020 its reverse (2011111242131), we get a palindrome (15135322353151).

The spelling of 13124211111020 in words is "thirteen trillion, one hundred twenty-four billion, two hundred eleven million, one hundred eleven thousand, twenty".