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122543120213 = 167985174489
BaseRepresentation
bin111001000100000100…
…0111001111101010101
3102201022020111111120222
41302020020321331111
54001432014321323
6132143500204125
711565506223023
oct1621010717525
9381266444528
10122543120213
1147a7443aa68
121b8bb539645
13b72c033627
145d06dbd713
1532c339c9c8
hex1c88239f55

122543120213 has 8 divisors (see below), whose sum is σ = 123291080640. Its totient is φ = 121795328800.

The previous prime is 122543120207. The next prime is 122543120221. The reversal of 122543120213 is 312021345221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122543120213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122543120813) 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, 1607873 + ... + 1682361.

It is an arithmetic number, because the mean of its divisors is an integer number (15411385080).

Almost surely, 2122543120213 is an apocalyptic number.

It is an amenable number.

122543120213 is a deficient number, since it is larger than the sum of its proper divisors (747960427).

122543120213 is an equidigital number, since it uses as much as digits as its factorization.

122543120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84507.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 122543120213 its reverse (312021345221), we get a palindrome (434564465434).

The spelling of 122543120213 in words is "one hundred twenty-two billion, five hundred forty-three million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 167 9851 74489 1645117 12439663 733791139 122543120213