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122123605560161 = 257634740271147
BaseRepresentation
bin11011110001001000011110…
…001000001100101101100001
3121000101220101001021221010012
4123301020132020030231201
5112001333121010411121
61111422450534014305
734503065535464642
oct3361103610145541
9530356331257105
10122123605560161
1135a0436a6458a7
12118444584a7395
13531b28bb5424a
142222b57a616c9
15e1baadde7c5b
hex6f121e20cb61

122123605560161 has 4 divisors (see below), whose sum is σ = 122128345857072. Its totient is φ = 122118865263252.

The previous prime is 122123605560139. The next prime is 122123605560241. The reversal of 122123605560161 is 161065506321221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122123605560161 - 238 = 121848727653217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122123605560661) 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, 2370109811 + ... + 2370161336.

It is an arithmetic number, because the mean of its divisors is an integer number (30532086464268).

Almost surely, 2122123605560161 is an apocalyptic number.

It is an amenable number.

122123605560161 is a deficient number, since it is larger than the sum of its proper divisors (4740296911).

122123605560161 is an equidigital number, since it uses as much as digits as its factorization.

122123605560161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740296910.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 122123605560161 in words is "one hundred twenty-two trillion, one hundred twenty-three billion, six hundred five million, five hundred sixty thousand, one hundred sixty-one".

Divisors: 1 25763 4740271147 122123605560161