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23023131112 = 23269101910499
BaseRepresentation
bin10101011100010010…
…010001100111101000
32012102112002020111201
4111130102101213220
5334122410143422
614324321333544
71443351246142
oct253422214750
965375066451
1023023131112
119844a59193
1245664972b4
13222baca807
1411859cdc92
158eb37d727
hex55c4919e8

23023131112 has 32 divisors (see below), whose sum is σ = 43375500000. Its totient is φ = 11456425408.

The previous prime is 23023131101. The next prime is 23023131113. The reversal of 23023131112 is 21113132032.

It is a self number, because there is not a number n which added to its sum of digits gives 23023131112.

It is not an unprimeable number, because it can be changed into a prime (23023131113) 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, 2187639 + ... + 2198137.

It is an arithmetic number, because the mean of its divisors is an integer number (1355484375).

Almost surely, 223023131112 is an apocalyptic number.

It is an amenable number.

23023131112 is a deficient number, since it is larger than the sum of its proper divisors (20352368888).

23023131112 is a wasteful number, since it uses less digits than its factorization.

23023131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11793 (or 11789 counting only the distinct ones).

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

Adding to 23023131112 its reverse (21113132032), we get a palindrome (44136263144).

The spelling of 23023131112 in words is "twenty-three billion, twenty-three million, one hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 269 538 1019 1076 2038 2152 4076 8152 10499 20998 41996 83992 274111 548222 1096444 2192888 2824231 5648462 10698481 11296924 21396962 22593848 42793924 85587848 2877891389 5755782778 11511565556 23023131112