11311112212051 has 2 divisors, whose sum is σ = 11311112212052. Its totient is φ = 11311112212050.

The previous prime is 11311112211953. The next prime is 11311112212069. The reversal of 11311112212051 is 15021221111311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11311112212051 - 2⁷ = 11311112211923 is a prime.

It is not a weakly prime, because it can be changed into another prime (11311112212651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655556106025 + 5655556106026.

It is an arithmetic number, because the mean of its divisors is an integer number (5655556106026).

Almost surely, 2^{11311112212051} is an apocalyptic number.

11311112212051 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311112212051 is an equidigital number, since it uses as much as digits as its factorization.

11311112212051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 22.

Adding to 11311112212051 its reverse (15021221111311), we get a palindrome (26332333323362).

The spelling of 11311112212051 in words is "eleven trillion, three hundred eleven billion, one hundred twelve million, two hundred twelve thousand, fifty-one".