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23312123331 = 372158585873
BaseRepresentation
bin10101101101100000…
…101100010111000011
32020011122212120022020
4111231200230113003
5340220400421311
614413123412523
71453460531100
oct255540542703
966148776266
1023312123331
1199830a4332
124627224143
132276943123
1411b2139aa7
15916915c06
hex56d82c5c3

23312123331 has 12 divisors (see below), whose sum is σ = 36157579272. Its totient is φ = 13321213248.

The previous prime is 23312123279. The next prime is 23312123369. The reversal of 23312123331 is 13332121332.

It is not a de Polignac number, because 23312123331 - 210 = 23312122307 is a prime.

It is a super-2 number, since 2×233121233312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23312123381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79292790 + ... + 79293083.

It is an arithmetic number, because the mean of its divisors is an integer number (3013131606).

Almost surely, 223312123331 is an apocalyptic number.

23312123331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23312123331 is a deficient number, since it is larger than the sum of its proper divisors (12845455941).

23312123331 is a wasteful number, since it uses less digits than its factorization.

23312123331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158585890 (or 158585883 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 23312123331 its reverse (13332121332), we get a palindrome (36644244663).

The spelling of 23312123331 in words is "twenty-three billion, three hundred twelve million, one hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 3 7 21 49 147 158585873 475757619 1110101111 3330303333 7770707777 23312123331