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12344343031 = 24734991647
BaseRepresentation
bin10110111111100011…
…11011100111110111
31011212022001121012001
423133301323213313
5200240122434111
65400530040131
7614622120166
oct133761734767
934768047161
1012344343031
115265072699
122486119047
1312195b9bb7
148516553dd
154c3add1c1
hex2dfc7b9f7

12344343031 has 4 divisors (see below), whose sum is σ = 12349337152. Its totient is φ = 12339348912.

The previous prime is 12344343023. The next prime is 12344343043. The reversal of 12344343031 is 13034344321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13034344321 = 29449460149.

It is a cyclic number.

It is not a de Polignac number, because 12344343031 - 23 = 12344343023 is a prime.

It is a super-2 number, since 2×123443430312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344343061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493351 + ... + 2498296.

It is an arithmetic number, because the mean of its divisors is an integer number (3087334288).

Almost surely, 212344343031 is an apocalyptic number.

12344343031 is a deficient number, since it is larger than the sum of its proper divisors (4994121).

12344343031 is an equidigital number, since it uses as much as digits as its factorization.

12344343031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994120.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12344343031 its reverse (13034344321), we get a palindrome (25378687352).

The spelling of 12344343031 in words is "twelve billion, three hundred forty-four million, three hundred forty-three thousand, thirty-one".

Divisors: 1 2473 4991647 12344343031