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212131410331 = 2328132822437
BaseRepresentation
bin1100010110010000000…
…1000111000110011011
3202021112210200011221011
43011210001013012123
511433421120112311
6241241332154351
721216546144151
oct3054401070633
9667483604834
10212131410331
1181a67718355
12351424689b7
1317008774399
14a3a53493d1
1557b8501321
hex316404719b

212131410331 has 8 divisors (see below), whose sum is σ = 222142260384. Its totient is φ = 202186205760.

The previous prime is 212131410329. The next prime is 212131410371. The reversal of 212131410331 is 133014131212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212131410331 - 21 = 212131410329 is a prime.

It is a super-2 number, since 2×2121314103312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212131410371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16404756 + ... + 16417681.

It is an arithmetic number, because the mean of its divisors is an integer number (27767782548).

Almost surely, 2212131410331 is an apocalyptic number.

212131410331 is a deficient number, since it is larger than the sum of its proper divisors (10010850053).

212131410331 is a wasteful number, since it uses less digits than its factorization.

212131410331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32822741.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 212131410331 its reverse (133014131212), we get a palindrome (345145541543).

The spelling of 212131410331 in words is "two hundred twelve billion, one hundred thirty-one million, four hundred ten thousand, three hundred thirty-one".

Divisors: 1 23 281 6463 32822437 754916051 9223104797 212131410331