1011121123171 has 2 divisors, whose sum is σ = 1011121123172. Its totient is φ = 1011121123170.

The previous prime is 1011121123157. The next prime is 1011121123213. The reversal of 1011121123171 is 1713211211101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011121123171 - 2⁷ = 1011121123043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011121123141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505560561585 + 505560561586.

It is an arithmetic number, because the mean of its divisors is an integer number (505560561586).

Almost surely, 2^{1011121123171} is an apocalyptic number.

1011121123171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011121123171 is an equidigital number, since it uses as much as digits as its factorization.

1011121123171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 22.

Adding to 1011121123171 its reverse (1713211211101), we get a palindrome (2724332334272).

The spelling of 1011121123171 in words is "one trillion, eleven billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred seventy-one".