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12333323131 = 24375060863
BaseRepresentation
bin10110111110001111…
…11001001101111011
31011211112022201201121
423133013321031323
5200224312320011
65355453530111
7614426342203
oct133707711573
934745281647
1012333323131
115259926238
1224824a3937
13121722c04c
1484ddc7403
154c2b62e71
hex2df1f937b

12333323131 has 4 divisors (see below), whose sum is σ = 12338386432. Its totient is φ = 12328259832.

The previous prime is 12333323069. The next prime is 12333323153. The reversal of 12333323131 is 13132333321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13132333321 = 73179894977.

It is a cyclic number.

It is not a de Polignac number, because 12333323131 - 29 = 12333322619 is a prime.

It is a super-2 number, since 2×123333231312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12333323096 and 12333323105.

It is not an unprimeable number, because it can be changed into a prime (12333323231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2527995 + ... + 2532868.

It is an arithmetic number, because the mean of its divisors is an integer number (3084596608).

Almost surely, 212333323131 is an apocalyptic number.

12333323131 is a deficient number, since it is larger than the sum of its proper divisors (5063301).

12333323131 is an equidigital number, since it uses as much as digits as its factorization.

12333323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063300.

The product of its digits is 2916, while the sum is 25.

Adding to 12333323131 its reverse (13132333321), we get a palindrome (25465656452).

The spelling of 12333323131 in words is "twelve billion, three hundred thirty-three million, three hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 2437 5060863 12333323131