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231132121103 = 1323657137397
BaseRepresentation
bin1101011101000010001…
…1000100100000001111
3211002120222212022001202
43113100203010200033
512241324310333403
6254103003300115
722461445420322
oct3272043044017
9732528768052
10231132121103
118a028069604
123896581a63b
1318a46100500
14b288a2a7b9
15602b67b688
hex35d08c480f

231132121103 has 12 divisors (see below), whose sum is σ = 250292697048. Its totient is φ = 213341188320.

The previous prime is 231132121093. The next prime is 231132121127. The reversal of 231132121103 is 301121231132.

It is a happy number.

It is not a de Polignac number, because 231132121103 - 214 = 231132104719 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 (231132121403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6161801 + ... + 6199197.

It is an arithmetic number, because the mean of its divisors is an integer number (20857724754).

Almost surely, 2231132121103 is an apocalyptic number.

231132121103 is a deficient number, since it is larger than the sum of its proper divisors (19160575945).

231132121103 is a wasteful number, since it uses less digits than its factorization.

231132121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73994 (or 73981 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231132121103 its reverse (301121231132), we get a palindrome (532253352235).

The spelling of 231132121103 in words is "two hundred thirty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, one hundred three".

Divisors: 1 13 169 36571 37397 475423 486161 6180499 6320093 1367645687 17779393931 231132121103