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231222231101 = 6732311148667
BaseRepresentation
bin1101011101010111101…
…0110100000000111101
3211002211021102100202002
43113111322310000331
512242020342343401
6254115542512045
722463621351561
oct3272572640075
9732737370662
10231222231101
118a073a15584
123898ba35625
1318a5b990534
14b2969a56a1
15603452aa6b
hex35d5eb403d

231222231101 has 8 divisors (see below), whose sum is σ = 231667560384. Its totient is φ = 230777205120.

The previous prime is 231222231083. The next prime is 231222231161. The reversal of 231222231101 is 101132222132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231222231101 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 (231222231161) 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, 1480970 + ... + 1629636.

It is an arithmetic number, because the mean of its divisors is an integer number (28958445048).

Almost surely, 2231222231101 is an apocalyptic number.

It is an amenable number.

231222231101 is a deficient number, since it is larger than the sum of its proper divisors (445329283).

231222231101 is a wasteful number, since it uses less digits than its factorization.

231222231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151651.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 231222231101 its reverse (101132222132), we get a palindrome (332354453233).

The spelling of 231222231101 in words is "two hundred thirty-one billion, two hundred twenty-two million, two hundred thirty-one thousand, one hundred one".

Divisors: 1 673 2311 148667 1555303 100052891 343569437 231222231101