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23103123112 = 2319151994231
BaseRepresentation
bin10101100001000011…
…011010111010101000
32012122002121020220101
4111201003122322220
5334303344414422
614340300035144
71445342210026
oct254103327250
965562536811
1023103123112
119886124383
124589232ab4
132242557364
141192493716
159033cec27
hex5610daea8

23103123112 has 16 divisors (see below), whose sum is σ = 45598269600. Its totient is φ = 10943584560.

The previous prime is 23103123061. The next prime is 23103123193. The reversal of 23103123112 is 21132130132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23103123112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75996964 + ... + 75997267.

It is an arithmetic number, because the mean of its divisors is an integer number (2849891850).

Almost surely, 223103123112 is an apocalyptic number.

It is an amenable number.

23103123112 is a deficient number, since it is larger than the sum of its proper divisors (22495146488).

23103123112 is a wasteful number, since it uses less digits than its factorization.

23103123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151994256 (or 151994252 counting only the distinct ones).

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

Adding to 23103123112 its reverse (21132130132), we get a palindrome (44235253244).

The spelling of 23103123112 in words is "twenty-three billion, one hundred three million, one hundred twenty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 19 38 76 152 151994231 303988462 607976924 1215953848 2887890389 5775780778 11551561556 23103123112