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12133012233 = 3231279137483
BaseRepresentation
bin10110100110010111…
…10001001100001001
31011022120101212211110
423103023301030021
5144322022342413
65323540320533
7606444621336
oct132313611411
934276355743
1012133012233
115166850741
1224273a3149
1311b48963a4
1483156398d
154b02968c3
hex2d32f1309

12133012233 has 16 divisors (see below), whose sum is σ = 16894033920. Its totient is φ = 7730887824.

The previous prime is 12133012223. The next prime is 12133012237. The reversal of 12133012233 is 33221033121.

It is not a de Polignac number, because 12133012233 - 25 = 12133012201 is a prime.

It is a super-2 number, since 2×121330122332 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12133012237) 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, 19510 + ... + 156992.

It is an arithmetic number, because the mean of its divisors is an integer number (1055877120).

Almost surely, 212133012233 is an apocalyptic number.

It is an amenable number.

12133012233 is a deficient number, since it is larger than the sum of its proper divisors (4761021687).

12133012233 is a wasteful number, since it uses less digits than its factorization.

12133012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138788.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12133012233 its reverse (33221033121), we get a palindrome (45354045354).

The spelling of 12133012233 in words is "twelve billion, one hundred thirty-three million, twelve thousand, two hundred thirty-three".

Divisors: 1 3 23 69 1279 3837 29417 88251 137483 412449 3162109 9486327 175840757 527522271 4044337411 12133012233