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12324231431 = 107167689699
BaseRepresentation
bin10110111101001010…
…01101100100000111
31011210220012211020222
423132211031210013
5200220000401211
65354531014555
7614256144611
oct133645154407
934726184228
1012324231431
115254786536
12247b43a45b
131215397a45
1484cadbdb1
154c1e691db
hex2de94d907

12324231431 has 8 divisors (see below), whose sum is σ = 12513916800. Its totient is φ = 12135926008.

The previous prime is 12324231407. The next prime is 12324231433. The reversal of 12324231431 is 13413242321.

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

It is a cyclic number.

It is not a de Polignac number, because 12324231431 - 222 = 12320037127 is a prime.

It is a super-2 number, since 2×123242314312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12324231431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12324231433) 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, 326981 + ... + 362718.

It is an arithmetic number, because the mean of its divisors is an integer number (1564239600).

Almost surely, 212324231431 is an apocalyptic number.

12324231431 is a deficient number, since it is larger than the sum of its proper divisors (189685369).

12324231431 is a wasteful number, since it uses less digits than its factorization.

12324231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689973.

The product of its digits is 3456, while the sum is 26.

Adding to 12324231431 its reverse (13413242321), we get a palindrome (25737473752).

The spelling of 12324231431 in words is "twelve billion, three hundred twenty-four million, two hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 107 167 17869 689699 73797793 115179733 12324231431