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23141134431 = 334319932071
BaseRepresentation
bin10101100011010100…
…011011000001011111
32012201202010102122000
4111203110123001133
5334343112300211
614344134453343
71446313253142
oct254324330137
965652112560
1023141134431
1198a5626898
124599b04253
13224a3a596c
14119754a059
159068dc656
hex56351b05f

23141134431 has 16 divisors (see below), whose sum is σ = 35080446720. Its totient is φ = 15068644920.

The previous prime is 23141134427. The next prime is 23141134447. The reversal of 23141134431 is 13443114132.

23141134431 is a `hidden beast` number, since 2 + 314 + 1 + 1 + 344 + 3 + 1 = 666.

It is not a de Polignac number, because 23141134431 - 22 = 23141134427 is a prime.

It is a super-2 number, since 2×231411344312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23141134395 and 23141134404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23141134421) 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, 9964875 + ... + 9967196.

It is an arithmetic number, because the mean of its divisors is an integer number (2192527920).

Almost surely, 223141134431 is an apocalyptic number.

23141134431 is a deficient number, since it is larger than the sum of its proper divisors (11939312289).

23141134431 is a wasteful number, since it uses less digits than its factorization.

23141134431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932123 (or 19932117 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 23141134431 its reverse (13443114132), we get a palindrome (36584248563).

The spelling of 23141134431 in words is "twenty-three billion, one hundred forty-one million, one hundred thirty-four thousand, four hundred thirty-one".

Divisors: 1 3 9 27 43 129 387 1161 19932071 59796213 179388639 538165917 857079053 2571237159 7713711477 23141134431