12011100231001 has 2 divisors, whose sum is σ = 12011100231002. Its totient is φ = 12011100231000.

The previous prime is 12011100230999. The next prime is 12011100231017. The reversal of 12011100231001 is 10013200111021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7053459547225 + 4957640683776 = 2655835^2 + 2226576^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011100231001 - 2¹ = 12011100230999 is a prime.

It is a super-2 number, since 2×12011100231001² (a number of 27 digits) contains 22 as substring.

Together with 12011100230999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12011100031001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005550115500 + 6005550115501.

It is an arithmetic number, because the mean of its divisors is an integer number (6005550115501).

Almost surely, 2^{12011100231001} is an apocalyptic number.

It is an amenable number.

12011100231001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011100231001 is an equidigital number, since it uses as much as digits as its factorization.

12011100231001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12011100231001 its reverse (10013200111021), we get a palindrome (22024300342022).

The spelling of 12011100231001 in words is "twelve trillion, eleven billion, one hundred million, two hundred thirty-one thousand, one".