1011233120171 has 2 divisors, whose sum is σ = 1011233120172. Its totient is φ = 1011233120170.

The previous prime is 1011233120159. The next prime is 1011233120189. The reversal of 1011233120171 is 1710213321101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011233120171 - 2¹⁰ = 1011233119147 is a prime.

It is a super-2 number, since 2×1011233120171² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1011233110171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505616560085 + 505616560086.

It is an arithmetic number, because the mean of its divisors is an integer number (505616560086).

Almost surely, 2^{1011233120171} is an apocalyptic number.

1011233120171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011233120171 is an equidigital number, since it uses as much as digits as its factorization.

1011233120171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 1011233120171 its reverse (1710213321101), we get a palindrome (2721446441272).

The spelling of 1011233120171 in words is "one trillion, eleven billion, two hundred thirty-three million, one hundred twenty thousand, one hundred seventy-one".