1010161121 has 2 divisors, whose sum is σ = 1010161122. Its totient is φ = 1010161120.

The previous prime is 1010161111. The next prime is 1010161183. The reversal of 1010161121 is 1211610101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009968400 + 192721 = 31780^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010161121 - 2¹⁸ = 1009898977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010161096 and 1010161105.

It is not a weakly prime, because it can be changed into another prime (1010161111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505080560 + 505080561.

It is an arithmetic number, because the mean of its divisors is an integer number (505080561).

Almost surely, 2^1010161121 is an apocalyptic number.

It is an amenable number.

1010161121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010161121 is an equidigital number, since it uses as much as digits as its factorization.

1010161121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 1010161121 is about 31783.0319667586. The cubic root of 1010161121 is about 1003.3756326161.

Adding to 1010161121 its reverse (1211610101), we get a palindrome (2221771222).

The spelling of 1010161121 in words is "one billion, ten million, one hundred sixty-one thousand, one hundred twenty-one".