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12110042031 = 39109443153
BaseRepresentation
bin10110100011101000…
…01001001110101111
31011020222011212122020
423101310021032233
5144300132321111
65321400121223
7606045441663
oct132164111657
934228155566
1012110042031
1151548918aa
12241b766213
1311acbb3059
1482c4a48a3
154ad25a906
hex2d1d093af

12110042031 has 8 divisors (see below), whose sum is σ = 16148531760. Its totient is φ = 8072456832.

The previous prime is 12110041997. The next prime is 12110042033. The reversal of 12110042031 is 13024001121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12110042031 - 221 = 12107944879 is a prime.

It is a super-2 number, since 2×121100420312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12110042031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110042033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194250 + ... + 248903.

It is an arithmetic number, because the mean of its divisors is an integer number (2018566470).

Almost surely, 212110042031 is an apocalyptic number.

12110042031 is a deficient number, since it is larger than the sum of its proper divisors (4038489729).

12110042031 is an equidigital number, since it uses as much as digits as its factorization.

12110042031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452265.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12110042031 its reverse (13024001121), we get a palindrome (25134043152).

The spelling of 12110042031 in words is "twelve billion, one hundred ten million, forty-two thousand, thirty-one".

Divisors: 1 3 9109 27327 443153 1329459 4036680677 12110042031