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131211303002213 = 718744471857459
BaseRepresentation
bin11101110101011000000011…
…000110110010000001100101
3122012120200022022022101212212
4131311120003012302001211
5114144231222032032323
61143021350201053205
736431463256302650
oct3565300306620145
9565520268271785
10131211303002213
1138898445967165
1212871767a87205
13582a2327a6985
14245893790c897
151028191726b78
hex7756031b2065

131211303002213 has 4 divisors (see below), whose sum is σ = 149955774859680. Its totient is φ = 112466831144748.

The previous prime is 131211303002201. The next prime is 131211303002239. The reversal of 131211303002213 is 312200303112131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131211303002213 - 222 = 131211298807909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131211303002243) 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, 9372235928723 + ... + 9372235928736.

It is an arithmetic number, because the mean of its divisors is an integer number (37488943714920).

Almost surely, 2131211303002213 is an apocalyptic number.

It is an amenable number.

131211303002213 is a deficient number, since it is larger than the sum of its proper divisors (18744471857467).

131211303002213 is an equidigital number, since it uses as much as digits as its factorization.

131211303002213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744471857466.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131211303002213 its reverse (312200303112131), we get a palindrome (443411606114344).

The spelling of 131211303002213 in words is "one hundred thirty-one trillion, two hundred eleven billion, three hundred three million, two thousand, two hundred thirteen".

Divisors: 1 7 18744471857459 131211303002213