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12031313043 = 321563185987
BaseRepresentation
bin10110011010001111…
…10100010010010011
31011001111001000202210
423031013310102103
5144120004004133
65305504443203
7604101321261
oct131507642223
934044030683
1012031313043
1151143a9622
1223b9319503
1311997a9359
14821c4d431
154a63a8763
hex2cd1f4493

12031313043 has 8 divisors (see below), whose sum is σ = 16042580928. Its totient is φ = 8020460264.

The previous prime is 12031313009. The next prime is 12031313053. The reversal of 12031313043 is 34031313021.

12031313043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12031313043 - 210 = 12031312019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12031313003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28305 + ... + 157682.

It is an arithmetic number, because the mean of its divisors is an integer number (2005322616).

Almost surely, 212031313043 is an apocalyptic number.

12031313043 is a deficient number, since it is larger than the sum of its proper divisors (4011267885).

12031313043 is a wasteful number, since it uses less digits than its factorization.

12031313043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207553.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12031313043 its reverse (34031313021), we get a palindrome (46062626064).

The spelling of 12031313043 in words is "twelve billion, thirty-one million, three hundred thirteen thousand, forty-three".

Divisors: 1 3 21563 64689 185987 557961 4010437681 12031313043