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201131111232131 = 1991277791471497
BaseRepresentation
bin101101101110110101111100…
…011100000011001010000011
3222101010221112221222011120212
4231232311330130003022003
5202330313003433412011
61551434205032424335
760236146302204653
oct5556657434031203
9871127487864525
10201131111232131
11590a52528a4533
121a6846822480ab
13882c775713542
143794b24d5a363
15183bd35ebd08b
hexb6ed7c703283

201131111232131 has 8 divisors (see below), whose sum is σ = 202300114888800. Its totient is φ = 199963690521408.

The previous prime is 201131111232091. The next prime is 201131111232193. The reversal of 201131111232131 is 131232111131102.

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 201131111232131 - 214 = 201131111215747 is a prime.

It is a super-2 number, since 2×2011311112321312 (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 = 201131111232097 and 201131111232106.

It is not an unprimeable number, because it can be changed into a prime (201131111222131) 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, 395481626 + ... + 395989871.

It is an arithmetic number, because the mean of its divisors is an integer number (25287514361100).

Almost surely, 2201131111232131 is an apocalyptic number.

201131111232131 is a deficient number, since it is larger than the sum of its proper divisors (1169003656669).

201131111232131 is a wasteful number, since it uses less digits than its factorization.

201131111232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791472973.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 201131111232131 its reverse (131232111131102), we get a palindrome (332363222363233).

The spelling of 201131111232131 in words is "two hundred one trillion, one hundred thirty-one billion, one hundred eleven million, two hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 199 1277 254123 791471497 157502827903 1010709101669 201131111232131