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123312102103 = 197552785931
BaseRepresentation
bin111001011010111111…
…0010101101011010111
3102210021211110211102201
41302311332111223113
54010020344231403
6132352050145331
711623534400521
oct1626576255327
9383254424381
10123312102103
1148329515493
121ba94b82247
13b822445cb8
145d7b192a11
15331ab4921d
hex1cb5f95ad7

123312102103 has 8 divisors (see below), whose sum is σ = 129805441920. Its totient is φ = 116819085240.

The previous prime is 123312102061. The next prime is 123312102119. The reversal of 123312102103 is 301201213321.

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 123312102103 - 217 = 123311971031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312102143) 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, 1392048 + ... + 1477978.

It is an arithmetic number, because the mean of its divisors is an integer number (16225680240).

Almost surely, 2123312102103 is an apocalyptic number.

123312102103 is a deficient number, since it is larger than the sum of its proper divisors (6493339817).

123312102103 is an equidigital number, since it uses as much as digits as its factorization.

123312102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161477.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123312102103 its reverse (301201213321), we get a palindrome (424513315424).

The spelling of 123312102103 in words is "one hundred twenty-three billion, three hundred twelve million, one hundred two thousand, one hundred three".

Divisors: 1 19 75527 85931 1435013 1632689 6490110637 123312102103