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12110131131 = 37576672911
BaseRepresentation
bin10110100011101000…
…11110111110111011
31011020222100101212020
423101310132332323
5144300143144011
65321402045523
7606046262520
oct132164367673
934228311766
1012110131131
11515494283a
12241b7a98a3
1311acc14787
1482c4c9147
154ad277006
hex2d1d1efbb

12110131131 has 8 divisors (see below), whose sum is σ = 18453533184. Its totient is φ = 6920074920.

The previous prime is 12110131123. The next prime is 12110131133. The reversal of 12110131131 is 13113101121.

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

It is not a de Polignac number, because 12110131131 - 23 = 12110131123 is a prime.

It is a super-2 number, since 2×121101311312 (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 12110131131.

It is not an unprimeable number, because it can be changed into a prime (12110131133) 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, 288336435 + ... + 288336476.

It is an arithmetic number, because the mean of its divisors is an integer number (2306691648).

Almost surely, 212110131131 is an apocalyptic number.

12110131131 is a deficient number, since it is larger than the sum of its proper divisors (6343402053).

12110131131 is an equidigital number, since it uses as much as digits as its factorization.

12110131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576672921.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 12110131131 its reverse (13113101121), we get a palindrome (25223232252).

The spelling of 12110131131 in words is "twelve billion, one hundred ten million, one hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 7 21 576672911 1730018733 4036710377 12110131131