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12123331303 = 232927765617
BaseRepresentation
bin10110100101001101…
…10101101011100111
31011021220012001002111
423102212311223213
5144312033100203
65322553021451
7606266421136
oct132246655347
934256161074
1012123331303
115161339276
1224240b4887
1311b2886b25
1483016391d
154ae4d326d
hex2d29b5ae7

12123331303 has 16 divisors (see below), whose sum is σ = 13134098880. Its totient is φ = 11155769856.

The previous prime is 12123331301. The next prime is 12123331313. The reversal of 12123331303 is 30313332121.

It is not a de Polignac number, because 12123331303 - 21 = 12123331301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123331301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151951 + ... + 217567.

It is an arithmetic number, because the mean of its divisors is an integer number (820881180).

Almost surely, 212123331303 is an apocalyptic number.

12123331303 is a deficient number, since it is larger than the sum of its proper divisors (1010767577).

12123331303 is a wasteful number, since it uses less digits than its factorization.

12123331303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65946.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12123331303 its reverse (30313332121), we get a palindrome (42436663424).

The spelling of 12123331303 in words is "twelve billion, one hundred twenty-three million, three hundred thirty-one thousand, three hundred three".

Divisors: 1 23 29 277 667 6371 8033 65617 184759 1509191 1902893 18175909 43766539 418045907 527101361 12123331303