12011031101 has 2 divisors, whose sum is σ = 12011031102. Its totient is φ = 12011031100.

The previous prime is 12011031083. The next prime is 12011031113. The reversal of 12011031101 is 10113011021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11718279001 + 292752100 = 108251^2 + 17110^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011031101 - 2²² = 12006836797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011031161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005515550 + 6005515551.

It is an arithmetic number, because the mean of its divisors is an integer number (6005515551).

Almost surely, 2^12011031101 is an apocalyptic number.

It is an amenable number.

12011031101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011031101 is an equidigital number, since it uses as much as digits as its factorization.

12011031101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 12011031101 its reverse (10113011021), we get a palindrome (22124042122).

The spelling of 12011031101 in words is "twelve billion, eleven million, thirty-one thousand, one hundred one".