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212143333332131 = 389545355612679
BaseRepresentation
bin110000001111000101111000…
…000001100101010010100011
31000211010201000122122212011122
4300033011320001211102203
5210301224021313112011
62031105145114202455
762453564364466025
oct6017057001452243
91024121018585148
10212143333332131
1161660534112033
121b96297112342b
13914b051cc3616
143a55b13806015
15197d50566a3db
hexc0f1780654a3

212143333332131 has 4 divisors (see below), whose sum is σ = 212688688945200. Its totient is φ = 211597977719064.

The previous prime is 212143333332121. The next prime is 212143333332157. The reversal of 212143333332131 is 131233333341212.

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

It is a cyclic number.

It is not a de Polignac number, because 212143333332131 - 214 = 212143333315747 is a prime.

It is a super-2 number, since 2×2121433333321312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212143333332091 and 212143333332100.

It is not an unprimeable number, because it can be changed into a prime (212143333332101) 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, 272677805951 + ... + 272677806728.

It is an arithmetic number, because the mean of its divisors is an integer number (53172172236300).

Almost surely, 2212143333332131 is an apocalyptic number.

212143333332131 is a deficient number, since it is larger than the sum of its proper divisors (545355613069).

212143333332131 is an equidigital number, since it uses as much as digits as its factorization.

212143333332131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545355613068.

The product of its digits is 69984, while the sum is 35.

Adding to 212143333332131 its reverse (131233333341212), we get a palindrome (343376666673343).

The spelling of 212143333332131 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred thirty-three million, three hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 389 545355612679 212143333332131