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23021030331 = 341324378971
BaseRepresentation
bin10101011100001010…
…010000101110111011
32012102101010111210000
4111130022100232323
5334121340432311
614324204324043
71443324346335
oct253412205673
965371114700
1023021030331
119843853902
124565843623
13222b543550
141185604455
158eb0b6056
hex55c290bbb

23021030331 has 40 divisors (see below), whose sum is σ = 37054108784. Its totient is φ = 14159396160.

The previous prime is 23021030323. The next prime is 23021030341. The reversal of 23021030331 is 13303012032.

23021030331 is a `hidden beast` number, since 2 + 302 + 1 + 0 + 30 + 331 = 666.

It is not a de Polignac number, because 23021030331 - 23 = 23021030323 is a prime.

It is a super-2 number, since 2×230210303312 (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 (23021030321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2561676 + ... + 2570646.

Almost surely, 223021030331 is an apocalyptic number.

23021030331 is a deficient number, since it is larger than the sum of its proper divisors (14033078453).

23021030331 is a wasteful number, since it uses less digits than its factorization.

23021030331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11433 (or 11424 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 23021030331 its reverse (13303012032), we get a palindrome (36324042363).

The spelling of 23021030331 in words is "twenty-three billion, twenty-one million, thirty thousand, three hundred thirty-one".

Divisors: 1 3 9 13 27 39 81 117 351 1053 2437 7311 8971 21933 26913 31681 65799 80739 95043 116623 197397 242217 285129 349869 726651 855387 1049607 2566161 3148821 9446463 21862327 65586981 196760943 284210251 590282829 852630753 1770848487 2557892259 7673676777 23021030331