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23130222331 = 25918927141
BaseRepresentation
bin10101100010101010…
…110010111011111011
32012200222121001001011
4111202222302323323
5334332314103311
614343104534351
71446121434346
oct254252627373
965628531034
1023130222331
11989a453427
1245963213b7
132248054bb8
141195d0945d
15905984321
hex562ab2efb

23130222331 has 4 divisors (see below), whose sum is σ = 23139152064. Its totient is φ = 23121292600.

The previous prime is 23130222289. The next prime is 23130222341. The reversal of 23130222331 is 13322203132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23130222331 - 211 = 23130220283 is a prime.

It is a super-2 number, since 2×231302223312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23130222341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4460980 + ... + 4466161.

It is an arithmetic number, because the mean of its divisors is an integer number (5784788016).

Almost surely, 223130222331 is an apocalyptic number.

23130222331 is a deficient number, since it is larger than the sum of its proper divisors (8929733).

23130222331 is an equidigital number, since it uses as much as digits as its factorization.

23130222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8929732.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23130222331 its reverse (13322203132), we get a palindrome (36452425463).

The spelling of 23130222331 in words is "twenty-three billion, one hundred thirty million, two hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 2591 8927141 23130222331