113121203211011 has 2 divisors, whose sum is σ = 113121203211012. Its totient is φ = 113121203211010.

The previous prime is 113121203211007. The next prime is 113121203211067. The reversal of 113121203211011 is 110112302121311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113121203211011 - 2² = 113121203211007 is a prime.

It is not a weakly prime, because it can be changed into another prime (113121203211091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56560601605505 + 56560601605506.

It is an arithmetic number, because the mean of its divisors is an integer number (56560601605506).

Almost surely, 2^{113121203211011} is an apocalyptic number.

113121203211011 is a deficient number, since it is larger than the sum of its proper divisors (1).

113121203211011 is an equidigital number, since it uses as much as digits as its factorization.

113121203211011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 113121203211011 its reverse (110112302121311), we get a palindrome (223233505332322).

The spelling of 113121203211011 in words is "one hundred thirteen trillion, one hundred twenty-one billion, two hundred three million, two hundred eleven thousand, eleven".