111303203302121 has 2 divisors, whose sum is σ = 111303203302122. Its totient is φ = 111303203302120.

The previous prime is 111303203302111. The next prime is 111303203302127. The reversal of 111303203302121 is 121203302303111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103781814776896 + 7521388525225 = 10187336^2 + 2742515^2 .

It is a cyclic number.

It is not a de Polignac number, because 111303203302121 - 2²² = 111303199107817 is a prime.

It is not a weakly prime, because it can be changed into another prime (111303203302127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55651601651060 + 55651601651061.

It is an arithmetic number, because the mean of its divisors is an integer number (55651601651061).

Almost surely, 2^{111303203302121} is an apocalyptic number.

It is an amenable number.

111303203302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111303203302121 is an equidigital number, since it uses as much as digits as its factorization.

111303203302121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 111303203302121 its reverse (121203302303111), we get a palindrome (232506505605232).

The spelling of 111303203302121 in words is "one hundred eleven trillion, three hundred three billion, two hundred three million, three hundred two thousand, one hundred twenty-one".