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123072363161 = 1131360916021
BaseRepresentation
bin111001010011110101…
…1110011101010011001
3102202200010100211102122
41302213223303222121
54004023011110121
6132312203511025
711614563553256
oct1624753635231
9382603324378
10123072363161
1148216160030
121ba28828475
13b7b4886c37
145d573c842d
153304a905ab
hex1ca7af3a99

123072363161 has 8 divisors (see below), whose sum is σ = 138591752448. Its totient is φ = 108274806000.

The previous prime is 123072363157. The next prime is 123072363173. The reversal of 123072363161 is 161363270321.

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 123072363161 - 22 = 123072363157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123072363121) 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, 180457670 + ... + 180458351.

It is an arithmetic number, because the mean of its divisors is an integer number (17323969056).

Almost surely, 2123072363161 is an apocalyptic number.

123072363161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123072363161 is a deficient number, since it is larger than the sum of its proper divisors (15519389287).

123072363161 is a wasteful number, since it uses less digits than its factorization.

123072363161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360916063.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 123072363161 in words is "one hundred twenty-three billion, seventy-two million, three hundred sixty-three thousand, one hundred sixty-one".

Divisors: 1 11 31 341 360916021 3970076231 11188396651 123072363161