13123001034020 has 24 divisors (see below), whose sum is σ = 27559747858104. Its totient is φ = 5248925044736.

The previous prime is 13123001033953. The next prime is 13123001034023. The reversal of 13123001034020 is 2043010032131.

It can be written as a sum of positive squares in 4 ways, for example, as 525158203684 + 12597842830336 = 724678^2 + 3549344^2 .

It is a super-2 number, since 2×13123001034020² (a number of 27 digits) contains 22 as substring.

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 = 13123001033983 and 13123001034001.

It is not an unprimeable number, because it can be changed into a prime (13123001034023) 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, 16819559 + ... + 17582478.

It is an arithmetic number, because the mean of its divisors is an integer number (1148322827421).

Almost surely, 2^{13123001034020} is an apocalyptic number.

13123001034020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123001034020 is an abundant number, since it is smaller than the sum of its proper divisors (14436746824084).

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

13123001034020 is a wasteful number, since it uses less digits than its factorization.

13123001034020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34421119 (or 34421117 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13123001034020 its reverse (2043010032131), we get a palindrome (15166011066151).

The spelling of 13123001034020 in words is "thirteen trillion, one hundred twenty-three billion, one million, thirty-four thousand, twenty".