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123020120233 = 1515081160343
BaseRepresentation
bin111001010010010010…
…0100001000010101001
3102202112111001121121101
41302210210201002221
54003421122321413
6132303100041401
711613360524443
oct1624444410251
9382474047541
10123020120233
114819971815a
121ba13233261
13b7a6ac496a
145d504a9493
1533001c0edd
hex1ca49210a9

123020120233 has 8 divisors (see below), whose sum is σ = 123859967616. Its totient is φ = 122180604000.

The previous prime is 123020120227. The next prime is 123020120243. The reversal of 123020120233 is 332021020321.

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 123020120233 - 29 = 123020119721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123020120233.

It is not an unprimeable number, because it can be changed into a prime (123020120243) 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, 687060 + ... + 847402.

It is an arithmetic number, because the mean of its divisors is an integer number (15482495952).

Almost surely, 2123020120233 is an apocalyptic number.

It is an amenable number.

123020120233 is a deficient number, since it is larger than the sum of its proper divisors (839847383).

123020120233 is a wasteful number, since it uses less digits than its factorization.

123020120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165575.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123020120233 its reverse (332021020321), we get a palindrome (455041140554).

It can be divided in two parts, 123020 and 120233, that added together give a triangular number (243253 = T697).

The spelling of 123020120233 in words is "one hundred twenty-three billion, twenty million, one hundred twenty thousand, two hundred thirty-three".

Divisors: 1 151 5081 160343 767231 24211793 814702783 123020120233