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12140203133 = 42432861231
BaseRepresentation
bin10110100111001110…
…01100110001111101
31011100001221012220002
423103213030301331
5144330343000013
65324354404045
7606563011142
oct132347146175
934301835802
1012140203133
11516a912333
122429890625
1311b6213466
148324b63c9
154b0c17358
hex2d39ccc7d

12140203133 has 4 divisors (see below), whose sum is σ = 12143068608. Its totient is φ = 12137337660.

The previous prime is 12140203123. The next prime is 12140203147. The reversal of 12140203133 is 33130204121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33130204121 = 74732886303.

It is a cyclic number.

It is not a de Polignac number, because 12140203133 - 26 = 12140203069 is a prime.

It is a super-2 number, since 2×121402031332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140203123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426373 + ... + 1434858.

It is an arithmetic number, because the mean of its divisors is an integer number (3035767152).

Almost surely, 212140203133 is an apocalyptic number.

It is an amenable number.

12140203133 is a deficient number, since it is larger than the sum of its proper divisors (2865475).

12140203133 is an equidigital number, since it uses as much as digits as its factorization.

12140203133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865474.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12140203133 its reverse (33130204121), we get a palindrome (45270407254).

The spelling of 12140203133 in words is "twelve billion, one hundred forty million, two hundred three thousand, one hundred thirty-three".

Divisors: 1 4243 2861231 12140203133