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2020031220001 = 13367315111737
BaseRepresentation
bin11101011001010011001…
…111100100100100100001
321011010001110010021000011
4131121103033210210201
5231044010443020001
64143553423324521
7265641154031254
oct35312317444441
97133043107004
102020031220001
11709765a63963
122875b4450741
13118646550382
146daacd8109b
153782b863d51
hex1d6533e4921

2020031220001 has 4 divisors (see below), whose sum is σ = 2020046465412. Its totient is φ = 2020015974592.

The previous prime is 2020031219993. The next prime is 2020031220029. The reversal of 2020031220001 is 1000221300202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 431486079376 + 1588545140625 = 656876^2 + 1260375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020031220001 - 23 = 2020031219993 is a prime.

It is a super-2 number, since 2×20200312200012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020031227001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7422196 + ... + 7689541.

It is an arithmetic number, because the mean of its divisors is an integer number (505011616353).

Almost surely, 22020031220001 is an apocalyptic number.

It is an amenable number.

2020031220001 is a deficient number, since it is larger than the sum of its proper divisors (15245411).

2020031220001 is a wasteful number, since it uses less digits than its factorization.

2020031220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15245410.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 2020031220001 its reverse (1000221300202), we get a palindrome (3020252520203).

The spelling of 2020031220001 in words is "two trillion, twenty billion, thirty-one million, two hundred twenty thousand, one".

Divisors: 1 133673 15111737 2020031220001