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23133330231 = 311838983563
BaseRepresentation
bin10101100010110110…
…101001101100110111
32012201012102221021120
4111202312221230313
5334334113031411
614343255315023
71446160030314
oct254266515467
965635387246
1023133330231
1198a1186440
12459737ba73
1322488a26ab
1411964b7d0b
15905d9a106
hex562da9b37

23133330231 has 16 divisors (see below), whose sum is σ = 33652894080. Its totient is φ = 14018361120.

The previous prime is 23133330223. The next prime is 23133330239. The reversal of 23133330231 is 13203333132.

It is an interprime number because it is at equal distance from previous prime (23133330223) and next prime (23133330239).

It is not a de Polignac number, because 23133330231 - 23 = 23133330223 is a prime.

It is a super-2 number, since 2×231333302312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133330239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235056 + ... + 318618.

It is an arithmetic number, because the mean of its divisors is an integer number (2103305880).

Almost surely, 223133330231 is an apocalyptic number.

23133330231 is a deficient number, since it is larger than the sum of its proper divisors (10519563849).

23133330231 is a wasteful number, since it uses less digits than its factorization.

23133330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91966.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 23133330231 its reverse (13203333132), we get a palindrome (36336663363).

The spelling of 23133330231 in words is "twenty-three billion, one hundred thirty-three million, three hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 11 33 8389 25167 83563 92279 250689 276837 919193 2757579 701010007 2103030021 7711110077 23133330231