12011023133 has 2 divisors, whose sum is σ = 12011023134. Its totient is φ = 12011023132.

The previous prime is 12011023091. The next prime is 12011023163. The reversal of 12011023133 is 33132011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10587998404 + 1423024729 = 102898^2 + 37723^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011023133 - 2³⁰ = 10937281309 is a prime.

It is a super-2 number, since 2×12011023133² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011023163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005511566 + 6005511567.

It is an arithmetic number, because the mean of its divisors is an integer number (6005511567).

Almost surely, 2^12011023133 is an apocalyptic number.

It is an amenable number.

12011023133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011023133 is an equidigital number, since it uses as much as digits as its factorization.

12011023133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12011023133 its reverse (33132011021), we get a palindrome (45143034154).

The spelling of 12011023133 in words is "twelve billion, eleven million, twenty-three thousand, one hundred thirty-three".