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123131003343 = 3291415298889
BaseRepresentation
bin111001010101100101…
…1100000000111001111
3102202211012201001122020
41302223023200013033
54004133014101333
6132322100421223
711616205155015
oct1625313400717
9382735631566
10123131003343
1148246272297
121ba443a7813
13b7c3a78c7a
145d610d08b5
153309cc53b3
hex1cab2e01cf

123131003343 has 8 divisors (see below), whose sum is σ = 169835866800. Its totient is φ = 79256737728.

The previous prime is 123131003311. The next prime is 123131003351. The reversal of 123131003343 is 343300131321.

It is a happy number.

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

It is not a de Polignac number, because 123131003343 - 25 = 123131003311 is a prime.

It is a super-2 number, since 2×1231310033432 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131003363) 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 7 ways as a sum of consecutive naturals, for example, 707649358 + ... + 707649531.

It is an arithmetic number, because the mean of its divisors is an integer number (21229483350).

Almost surely, 2123131003343 is an apocalyptic number.

123131003343 is a deficient number, since it is larger than the sum of its proper divisors (46704863457).

123131003343 is a wasteful number, since it uses less digits than its factorization.

123131003343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415298921.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123131003343 its reverse (343300131321), we get a palindrome (466431134664).

The spelling of 123131003343 in words is "one hundred twenty-three billion, one hundred thirty-one million, three thousand, three hundred forty-three".

Divisors: 1 3 29 87 1415298889 4245896667 41043667781 123131003343