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2020213131311 = 47101922146153
BaseRepresentation
bin11101011001011110000…
…101100000100000101111
321011010112010102022102002
4131121132011200200233
5231044344030200221
64144023442322515
7265645523200034
oct35313605404057
97133463368362
102020213131311
11709849711591
1228764535943b
131186751431bb
146dac91b538b
153783c7e880b
hex1d65e16082f

2020213131311 has 16 divisors (see below), whose sum is σ = 2083895192448. Its totient is φ = 1957398624000.

The previous prime is 2020213131269. The next prime is 2020213131319. The reversal of 2020213131311 is 1131313120202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2020213131311 is a prime.

It is a super-2 number, since 2×20202131313112 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020213131319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43749011 + ... + 43795163.

It is an arithmetic number, because the mean of its divisors is an integer number (130243449528).

Almost surely, 22020213131311 is an apocalyptic number.

2020213131311 is a deficient number, since it is larger than the sum of its proper divisors (63682061137).

2020213131311 is a wasteful number, since it uses less digits than its factorization.

2020213131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55522.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2020213131311 its reverse (1131313120202), we get a palindrome (3151526251513).

The spelling of 2020213131311 in words is "two trillion, twenty billion, two hundred thirteen million, one hundred thirty-one thousand, three hundred eleven".

Divisors: 1 47 101 4747 9221 46153 433387 931321 2169191 4661453 43772087 219088291 425576813 20002110211 42983258113 2020213131311