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23131134421143 = 3729121331312579
BaseRepresentation
bin1010100001001101000110…
…00011001110100010010111
310000220022111112021120222120
411100212203003032202113
511012440030402434033
6121110144011231023
74605112034330430
oct520464303164227
9100808445246876
1023131134421143
11740894a398281
122716b76148473
13cba344a2b578
1459d7a515c487
152a1a61d231b3
hex1509a30ce897

23131134421143 has 32 divisors (see below), whose sum is σ = 36492933235200. Its totient is φ = 12751483764096.

The previous prime is 23131134421141. The next prime is 23131134421177. The reversal of 23131134421143 is 34112443113132.

Adding to 23131134421143 its reverse (34112443113132), we get a palindrome (57243577534275).

It is a happy number.

It is not a de Polignac number, because 23131134421143 - 21 = 23131134421141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131134421141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14917573 + ... + 16395006.

It is an arithmetic number, because the mean of its divisors is an integer number (1140404163600).

Almost surely, 223131134421143 is an apocalyptic number.

23131134421143 is a deficient number, since it is larger than the sum of its proper divisors (13361798814057).

23131134421143 is a wasteful number, since it uses less digits than its factorization.

23131134421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31313831.

The product of its digits is 20736, while the sum is 33.

The spelling of 23131134421143 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twenty-one thousand, one hundred forty-three".

Divisors: 1 3 7 21 29 87 203 609 1213 3639 8491 25473 35177 105531 246239 738717 31312579 93937737 219188053 657564159 908064791 2724194373 6356453537 19069360611 37982158327 113946474981 265875108289 797625324867 1101482591483 3304447774449 7710378140381 23131134421143