12011132001 has 32 divisors (see below), whose sum is σ = 18056134656. Its totient is φ = 7036128000.

The previous prime is 12011131997. The next prime is 12011132033. The reversal of 12011132001 is 10023111021.

It is not a de Polignac number, because 12011132001 - 2² = 12011131997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011132041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 894600 + ... + 907926.

It is an arithmetic number, because the mean of its divisors is an integer number (564254208).

Almost surely, 2^12011132001 is an apocalyptic number.

12011132001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011132001 is a deficient number, since it is larger than the sum of its proper divisors (6045002655).

12011132001 is a wasteful number, since it uses less digits than its factorization.

12011132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14253.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12011132001 its reverse (10023111021), we get a palindrome (22034243022).

It can be divided in two parts, 120 and 11132001, that added together give a triangular number (11132121 = T₄₇₁₈).

The spelling of 12011132001 in words is "twelve billion, eleven million, one hundred thirty-two thousand, one".