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123200200131 = 345789861561
BaseRepresentation
bin111001010111101001…
…1011101110111000011
3102210000000220121210020
41302233103131313003
54004303222401011
6132333011504523
711621005264641
oct1625723356703
9383000817706
10123200200131
1148281334918
121ba635b8143
13b8051c6008
145d6a384191
153310de3006
hex1caf4dddc3

123200200131 has 8 divisors (see below), whose sum is σ = 164626381584. Its totient is φ = 81953742720.

The previous prime is 123200200111. The next prime is 123200200153. The reversal of 123200200131 is 131002002321.

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

It is not a de Polignac number, because 123200200131 - 25 = 123200200099 is a prime.

It is a super-2 number, since 2×1232002001312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123200200131.

It is not an unprimeable number, because it can be changed into a prime (123200200111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44929410 + ... + 44932151.

It is an arithmetic number, because the mean of its divisors is an integer number (20578297698).

Almost surely, 2123200200131 is an apocalyptic number.

123200200131 is a deficient number, since it is larger than the sum of its proper divisors (41426181453).

123200200131 is an equidigital number, since it uses as much as digits as its factorization.

123200200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89862021.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123200200131 its reverse (131002002321), we get a palindrome (254202202452).

The spelling of 123200200131 in words is "one hundred twenty-three billion, two hundred million, two hundred thousand, one hundred thirty-one".

Divisors: 1 3 457 1371 89861561 269584683 41066733377 123200200131