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131233200031211 = 666427196920593
BaseRepresentation
bin11101110101101100011100…
…010001010100010111101011
3122012122202211100102201200212
4131311230130101110113223
5114200111043201444321
61143035411054251335
736433200015053435
oct3565543421242753
9565582740381625
10131233200031211
11388a67621a2143
1212875a591b6b4b
13582c3121b4a75
142459a13b27655
151028a23cb555b
hex775b1c4545eb

131233200031211 has 4 divisors (see below), whose sum is σ = 131233397618232. Its totient is φ = 131233002444192.

The previous prime is 131233200031187. The next prime is 131233200031223. The reversal of 131233200031211 is 112130002332131.

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 131233200031211 - 214 = 131233200014827 is a prime.

It is a super-2 number, since 2×1312332000312112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131233200031231) 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, 97793870 + ... + 99126723.

It is an arithmetic number, because the mean of its divisors is an integer number (32808349404558).

Almost surely, 2131233200031211 is an apocalyptic number.

131233200031211 is a deficient number, since it is larger than the sum of its proper divisors (197587021).

131233200031211 is an equidigital number, since it uses as much as digits as its factorization.

131233200031211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197587020.

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

Adding to 131233200031211 its reverse (112130002332131), we get a palindrome (243363202363342).

The spelling of 131233200031211 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, two hundred million, thirty-one thousand, two hundred eleven".

Divisors: 1 666427 196920593 131233200031211