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231331124441 = 19539710322993
BaseRepresentation
bin1101011101110001101…
…0001101010011011001
3211010002212022201022202
43113130122031103121
512242231231440231
6254134432455545
722466413054064
oct3273432152331
9733085281282
10231331124441
118a11a43077a
1238a003aa5b5
1318a783c8c71
14b2a722d8db
15603dd8a5cb
hex35dc68d4d9

231331124441 has 32 divisors (see below), whose sum is σ = 253103235840. Its totient is φ = 210728853504.

The previous prime is 231331124411. The next prime is 231331124443. The reversal of 231331124441 is 144421133132.

It is a cyclic number.

It is not a de Polignac number, because 231331124441 - 210 = 231331123417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231331124443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10049441 + ... + 10072433.

It is an arithmetic number, because the mean of its divisors is an integer number (7909476120).

Almost surely, 2231331124441 is an apocalyptic number.

It is an amenable number.

231331124441 is a deficient number, since it is larger than the sum of its proper divisors (21772111399).

231331124441 is a wasteful number, since it uses less digits than its factorization.

231331124441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23265.

The product of its digits is 6912, while the sum is 29.

Adding to 231331124441 its reverse (144421133132), we get a palindrome (375752257573).

The spelling of 231331124441 in words is "two hundred thirty-one billion, three hundred thirty-one million, one hundred twenty-four thousand, four hundred forty-one".

Divisors: 1 19 53 97 103 1007 1843 1957 5141 5459 9991 22993 97679 103721 189829 436867 529523 1218629 2230321 2368279 10060937 23153951 42376099 44997301 118207013 125518787 229723063 2245933247 2384856953 4364738197 12175322339 231331124441