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12110122331 = 12299853639
BaseRepresentation
bin10110100011101000…
…11100110101011011
31011020222022221210022
423101310130311123
5144300142403311
65321401541055
7606046225046
oct132164346533
934228287708
1012110122331
11515493716a
12241b7a478b
1311acc10778
1482c4c5c5d
154ad2745db
hex2d1d1cd5b

12110122331 has 4 divisors (see below), whose sum is σ = 12119977200. Its totient is φ = 12100267464.

The previous prime is 12110122289. The next prime is 12110122391. The reversal of 12110122331 is 13322101121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13322101121 = 71903157303.

It is a cyclic number.

It is not a de Polignac number, because 12110122331 - 218 = 12109860187 is a prime.

It is a super-2 number, since 2×121101223312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12110122391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925591 + ... + 4928048.

It is an arithmetic number, because the mean of its divisors is an integer number (3029994300).

Almost surely, 212110122331 is an apocalyptic number.

12110122331 is a deficient number, since it is larger than the sum of its proper divisors (9854869).

12110122331 is an equidigital number, since it uses as much as digits as its factorization.

12110122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9854868.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12110122331 its reverse (13322101121), we get a palindrome (25432223452).

The spelling of 12110122331 in words is "twelve billion, one hundred ten million, one hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 1229 9853639 12110122331