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23101420131 = 333127600263
BaseRepresentation
bin10101100000111100…
…111011001001100011
32012121222101201212000
4111200330323021203
5334302430421011
614340155335043
71445321555046
oct254074731143
965558351760
1023101420131
119885170959
124588751483
1322420ac18a
14119216cc5d
15903195356
hex560f3b263

23101420131 has 16 divisors (see below), whose sum is σ = 35328337920. Its totient is φ = 14904141480.

The previous prime is 23101420117. The next prime is 23101420141. The reversal of 23101420131 is 13102410132.

23101420131 is a `hidden beast` number, since 231 + 0 + 1 + 420 + 13 + 1 = 666.

It is not a de Polignac number, because 23101420131 - 25 = 23101420099 is a prime.

It is a super-2 number, since 2×231014201312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23101420141) 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, 13799295 + ... + 13800968.

It is an arithmetic number, because the mean of its divisors is an integer number (2208021120).

Almost surely, 223101420131 is an apocalyptic number.

23101420131 is a deficient number, since it is larger than the sum of its proper divisors (12226917789).

23101420131 is a wasteful number, since it uses less digits than its factorization.

23101420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27600303 (or 27600297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23101420131 its reverse (13102410132), we get a palindrome (36203830263).

Subtracting from 23101420131 its reverse (13102410132), we obtain a palindrome (9999009999).

The spelling of 23101420131 in words is "twenty-three billion, one hundred one million, four hundred twenty thousand, one hundred thirty-one".

Divisors: 1 3 9 27 31 93 279 837 27600263 82800789 248402367 745207101 855608153 2566824459 7700473377 23101420131