13021303121020 has 48 divisors (see below), whose sum is σ = 27380739990240. Its totient is φ = 5201666852096.

The previous prime is 13021303121003. The next prime is 13021303121033. The reversal of 13021303121020 is 2012130312031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62357346 + ... + 62565814.

It is an arithmetic number, because the mean of its divisors is an integer number (570432083130).

Almost surely, 2^{13021303121020} is an apocalyptic number.

13021303121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13021303121020 is an abundant number, since it is smaller than the sum of its proper divisors (14359436869220).

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

13021303121020 is a wasteful number, since it uses less digits than its factorization.

13021303121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212574 (or 212572 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13021303121020 its reverse (2012130312031), we get a palindrome (15033433433051).

The spelling of 13021303121020 in words is "thirteen trillion, twenty-one billion, three hundred three million, one hundred twenty-one thousand, twenty".