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102211132231 = 1321735576447
BaseRepresentation
bin101111100110001000…
…0100001101101000111
3100202211021021111110001
41133030100201231013
53133312022212411
6114542151142131
710245613201105
oct1371420415507
9322737244401
10102211132231
113a39057950a
1217986374947
13983b93b100
144d38998c75
1529d3404dc1
hex17cc421b47

102211132231 has 12 divisors (see below), whose sum is σ = 117188819712. Its totient is φ = 88798809216.

The previous prime is 102211132193. The next prime is 102211132249. The reversal of 102211132231 is 132231112201.

It is not a de Polignac number, because 102211132231 - 27 = 102211132103 is a prime.

It is a super-2 number, since 2×1022111322312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211132199 and 102211132208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211132291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17785351 + ... + 17791096.

It is an arithmetic number, because the mean of its divisors is an integer number (9765734976).

Almost surely, 2102211132231 is an apocalyptic number.

102211132231 is a deficient number, since it is larger than the sum of its proper divisors (14977687481).

102211132231 is a wasteful number, since it uses less digits than its factorization.

102211132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35576490 (or 35576477 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102211132231 its reverse (132231112201), we get a palindrome (234442244432).

The spelling of 102211132231 in words is "one hundred two billion, two hundred eleven million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 13 17 169 221 2873 35576447 462493811 604799599 6012419543 7862394787 102211132231