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10123033123 = 719212773137
BaseRepresentation
bin10010110110110000…
…10011101000100011
3222010111021100211201
421123120103220203
5131212444024443
64352255422031
7505600235050
oct113330235043
928114240751
1010123033123
114325208685
121b66224917
13c54336b38
146c062c027
153e3ab234d
hex25b613a23

10123033123 has 24 divisors (see below), whose sum is σ = 12223589472. Its totient is φ = 8211151872.

The previous prime is 10123033121. The next prime is 10123033177. The reversal of 10123033123 is 32133032101.

It is not a de Polignac number, because 10123033123 - 21 = 10123033121 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 self number, because there is not a number n which added to its sum of digits gives 10123033123.

It is not an unprimeable number, because it can be changed into a prime (10123033121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3225411 + ... + 3228547.

It is an arithmetic number, because the mean of its divisors is an integer number (509316228).

Almost surely, 210123033123 is an apocalyptic number.

10123033123 is a deficient number, since it is larger than the sum of its proper divisors (2100556349).

10123033123 is a wasteful number, since it uses less digits than its factorization.

10123033123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4440 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 10123033123 its reverse (32133032101), we get a palindrome (42256065224).

The spelling of 10123033123 in words is "ten billion, one hundred twenty-three million, thirty-three thousand, one hundred twenty-three".

Divisors: 1 7 19 133 361 1277 2527 3137 8939 21959 24263 59603 169841 417221 460997 1132457 3226979 4005949 7927199 28041643 76113031 532791217 1446147589 10123033123