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12332403431 = 81011522331
BaseRepresentation
bin10110111110001000…
…11000101011100111
31011211110121000010122
423133010120223213
5200224043402211
65355422112155
7614415461645
oct133704305347
934743530118
1012332403431
115259358257
12248211b65b
131216c9954a
1484dc28195
154c2a306db
hex2df118ae7

12332403431 has 4 divisors (see below), whose sum is σ = 12333933864. Its totient is φ = 12330873000.

The previous prime is 12332403371. The next prime is 12332403443. The reversal of 12332403431 is 13430423321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13430423321 = 71918631903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12332403431 is a prime.

It is a super-2 number, since 2×123324034312 (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 12332403431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12332433431) 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, 753065 + ... + 769266.

It is an arithmetic number, because the mean of its divisors is an integer number (3083483466).

Almost surely, 212332403431 is an apocalyptic number.

12332403431 is a deficient number, since it is larger than the sum of its proper divisors (1530433).

12332403431 is an equidigital number, since it uses as much as digits as its factorization.

12332403431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530432.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 12332403431 its reverse (13430423321), we get a palindrome (25762826752).

The spelling of 12332403431 in words is "twelve billion, three hundred thirty-two million, four hundred three thousand, four hundred thirty-one".

Divisors: 1 8101 1522331 12332403431