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12110101031 = 73139254003
BaseRepresentation
bin10110100011101000…
…10111101000100111
31011020222021212120102
423101310113220213
5144300141213111
65321401254315
7606046106000
oct132164275047
934228255512
1012110101031
115154922166
12241b79439b
1311acc03b72
1482c4bc1a7
154ad26d13b
hex2d1d17a27

12110101031 has 16 divisors (see below), whose sum is σ = 14224224000. Its totient is φ = 10305369144.

The previous prime is 12110100983. The next prime is 12110101033. The reversal of 12110101031 is 13010101121.

It is a happy number.

It is not a de Polignac number, because 12110101031 - 218 = 12109838887 is a prime.

It is a super-2 number, since 2×121101010312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110101033) 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, 79325 + ... + 174678.

It is an arithmetic number, because the mean of its divisors is an integer number (889014000).

Almost surely, 212110101031 is an apocalyptic number.

12110101031 is a deficient number, since it is larger than the sum of its proper divisors (2114122969).

12110101031 is an equidigital number, since it uses as much as digits as its factorization.

12110101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254163 (or 254149 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 12110101031 its reverse (13010101121), we get a palindrome (25120202152).

The spelling of 12110101031 in words is "twelve billion, one hundred ten million, one hundred one thousand, thirty-one".

Divisors: 1 7 49 139 343 973 6811 47677 254003 1778021 12446147 35306417 87123029 247144919 1730014433 12110101031