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30231102123 = 341379912749
BaseRepresentation
bin11100001001111010…
…100000001010101011
32220000212011002220000
4130021322200022223
5443403130231443
621515445234043
72120104061655
oct341172401253
986025132800
1030231102123
111190373a522
125a38402923
132b0a21bc11
14166b0056d5
15bbe0788d3
hex709ea02ab

30231102123 has 40 divisors (see below), whose sum is σ = 45552144000. Its totient is φ = 19979498880.

The previous prime is 30231102061. The next prime is 30231102127. The reversal of 30231102123 is 32120113203.

It is not a de Polignac number, because 30231102123 - 214 = 30231085739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30231102096 and 30231102105.

It is not an unprimeable number, because it can be changed into a prime (30231102127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10995753 + ... + 10998501.

It is an arithmetic number, because the mean of its divisors is an integer number (1138803600).

Almost surely, 230231102123 is an apocalyptic number.

30231102123 is a deficient number, since it is larger than the sum of its proper divisors (15321041877).

30231102123 is a wasteful number, since it uses less digits than its factorization.

30231102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889 (or 3880 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30231102123 its reverse (32120113203), we get a palindrome (62351215326).

The spelling of 30231102123 in words is "thirty billion, two hundred thirty-one million, one hundred two thousand, one hundred twenty-three".

Divisors: 1 3 9 27 81 137 411 991 1233 2749 2973 3699 8247 8919 11097 24741 26757 74223 80271 135767 222669 376613 407301 1129839 1221903 2724259 3389517 3665709 8172777 10168551 10997127 24518331 30505653 73554993 220664979 373223483 1119670449 3359011347 10077034041 30231102123