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331231132112331 = 31137836126528387
BaseRepresentation
bin100101101010000001100000…
…1111101111101010111001011
31121102210101110002220121212010
41023110003001331331113023
5321403342324310043311
63132245251553151003
7126524442143361243
oct11324030175752713
91542711402817763
10331231132112331
11965a4374999420
123119698bb5b463
13112a8c66c090b9
145bb195ac52b23
152846136527da6
hex12d40c1f7d5cb

331231132112331 has 16 divisors (see below), whose sum is σ = 481792029141888. Its totient is φ = 200745602539200.

The previous prime is 331231132112297. The next prime is 331231132112333. The reversal of 331231132112331 is 133211231132133.

It is not a de Polignac number, because 331231132112331 - 29 = 331231132111819 is a prime.

It is a super-3 number, since 3×3312311321123313 (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (331231132112333) 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, 778281 + ... + 25750106.

It is an arithmetic number, because the mean of its divisors is an integer number (30112001821368).

Almost surely, 2331231132112331 is an apocalyptic number.

331231132112331 is a deficient number, since it is larger than the sum of its proper divisors (150560897029557).

331231132112331 is a wasteful number, since it uses less digits than its factorization.

331231132112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26906762.

The product of its digits is 5832, while the sum is 30.

Adding to 331231132112331 its reverse (133211231132133), we get a palindrome (464442363244464).

The spelling of 331231132112331 in words is "three hundred thirty-one trillion, two hundred thirty-one billion, one hundred thirty-two million, one hundred twelve thousand, three hundred thirty-one".

Divisors: 1 3 11 33 378361 1135083 4161971 12485913 26528387 79585161 291812257 875436771 10037307033707 30111921101121 110410377370777 331231132112331