1131201002111 has 2 divisors, whose sum is σ = 1131201002112. Its totient is φ = 1131201002110.

The previous prime is 1131201002101. The next prime is 1131201002137. The reversal of 1131201002111 is 1112001021311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131201002111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131201002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565600501055 + 565600501056.

It is an arithmetic number, because the mean of its divisors is an integer number (565600501056).

Almost surely, 2^{1131201002111} is an apocalyptic number.

1131201002111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131201002111 is an equidigital number, since it uses as much as digits as its factorization.

1131201002111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1131201002111 its reverse (1112001021311), we get a palindrome (2243202023422).

The spelling of 1131201002111 in words is "one trillion, one hundred thirty-one billion, two hundred one million, two thousand, one hundred eleven".