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123142342411 = 1113185456171
BaseRepresentation
bin111001010101111011…
…0110000011100001011
3102202212000001010220201
41302223312300130023
54004143414424121
6132323143433031
711616403432354
oct1625366603413
9382760033821
10123142342411
1148251707520
121ba48155777
13b7c621918a
145d62802d2b
15330acb4e91
hex1cabdb070b

123142342411 has 8 divisors (see below), whose sum is σ = 135362576448. Its totient is φ = 111093021000.

The previous prime is 123142342321. The next prime is 123142342439. The reversal of 123142342411 is 114243241321.

It is a happy number.

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 123142342411 - 215 = 123142309643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123142342411.

It is not an unprimeable number, because it can be changed into a prime (123142342441) 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, 42726645 + ... + 42729526.

It is an arithmetic number, because the mean of its divisors is an integer number (16920322056).

Almost surely, 2123142342411 is an apocalyptic number.

123142342411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123142342411 is a deficient number, since it is larger than the sum of its proper divisors (12220234037).

123142342411 is a wasteful number, since it uses less digits than its factorization.

123142342411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85456313.

The product of its digits is 4608, while the sum is 28.

Adding to 123142342411 its reverse (114243241321), we get a palindrome (237385583732).

The spelling of 123142342411 in words is "one hundred twenty-three billion, one hundred forty-two million, three hundred forty-two thousand, four hundred eleven".

Divisors: 1 11 131 1441 85456171 940017881 11194758401 123142342411