20213301111020 has 48 divisors (see below), whose sum is σ = 44367440947200. Its totient is φ = 7720873507776.

The previous prime is 20213301111019. The next prime is 20213301111061. The reversal of 20213301111020 is 2011110331202.

It is a self number, because there is not a number n which added to its sum of digits gives 20213301111020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36403892 + ... + 36954971.

It is an arithmetic number, because the mean of its divisors is an integer number (924321686400).

Almost surely, 2^{20213301111020} is an apocalyptic number.

20213301111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213301111020 is an abundant number, since it is smaller than the sum of its proper divisors (24154139836180).

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

20213301111020 is a wasteful number, since it uses less digits than its factorization.

20213301111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73359494 (or 73359492 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20213301111020 its reverse (2011110331202), we get a palindrome (22224411442222).

The spelling of 20213301111020 in words is "twenty trillion, two hundred thirteen billion, three hundred one million, one hundred eleven thousand, twenty".