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23012312103 = 3211277839161
BaseRepresentation
bin10101011011101001…
…000000010000100111
32012101202201120121200
4111123221000100213
5334112122441403
614323253413543
71443160265634
oct253351002047
965352646550
1023012312103
119839939760
12456293a2b3
1322297b0231
1411843b518b
158ea442ca3
hex55ba40427

23012312103 has 24 divisors (see below), whose sum is σ = 36392777616. Its totient is φ = 13896489600.

The previous prime is 23012312101. The next prime is 23012312111. The reversal of 23012312103 is 30121321032.

It is not a de Polignac number, because 23012312103 - 21 = 23012312101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012312101) 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, 392158 + ... + 447003.

It is an arithmetic number, because the mean of its divisors is an integer number (1516365734).

Almost surely, 223012312103 is an apocalyptic number.

23012312103 is a deficient number, since it is larger than the sum of its proper divisors (13380465513).

23012312103 is a wasteful number, since it uses less digits than its factorization.

23012312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839455 (or 839452 counting only the distinct ones).

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

Adding to 23012312103 its reverse (30121321032), we get a palindrome (53133633135).

The spelling of 23012312103 in words is "twenty-three billion, twelve million, three hundred twelve thousand, one hundred three".

Divisors: 1 3 9 11 33 99 277 831 2493 3047 9141 27423 839161 2517483 7552449 9230771 27692313 83076939 232447597 697342791 2092028373 2556923567 7670770701 23012312103