20201021113020 has 48 divisors (see below), whose sum is σ = 61704937219968. Its totient is φ = 4897217239360.

The previous prime is 20201021113003. The next prime is 20201021113033. The reversal of 20201021113020 is 2031112010202.

It is a super-2 number, since 2×20201021113020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 15303803214 + ... + 15303804533.

It is an arithmetic number, because the mean of its divisors is an integer number (1285519525416).

Almost surely, 2^{20201021113020} is an apocalyptic number.

20201021113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201021113020 is an abundant number, since it is smaller than the sum of its proper divisors (41503916106948).

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

20201021113020 is a wasteful number, since it uses less digits than its factorization.

20201021113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30607607770 (or 30607607768 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20201021113020 its reverse (2031112010202), we get a palindrome (22232133123222).

The spelling of 20201021113020 in words is "twenty trillion, two hundred one billion, twenty-one million, one hundred thirteen thousand, twenty".