201121031112011 has 2 divisors, whose sum is σ = 201121031112012. Its totient is φ = 201121031112010.

The previous prime is 201121031111953. The next prime is 201121031112037. The reversal of 201121031112011 is 110211130121102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201121031112011 - 2⁶ = 201121031111947 is a prime.

It is not a weakly prime, because it can be changed into another prime (201121031132011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560515556005 + 100560515556006.

It is an arithmetic number, because the mean of its divisors is an integer number (100560515556006).

Almost surely, 2^{201121031112011} is an apocalyptic number.

201121031112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201121031112011 is an equidigital number, since it uses as much as digits as its factorization.

201121031112011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 201121031112011 its reverse (110211130121102), we get a palindrome (311332161233113).

Subtracting from 201121031112011 its reverse (110211130121102), we obtain a palindrome (90909900990909).

The spelling of 201121031112011 in words is "two hundred one trillion, one hundred twenty-one billion, thirty-one million, one hundred twelve thousand, eleven".