1061161011 has 12 divisors (see below), whose sum is σ = 1585643280. Its totient is φ = 683046000.

The previous prime is 1061161007. The next prime is 1061161019. The reversal of 1061161011 is 1101611601.

It is not a de Polignac number, because 1061161011 - 2² = 1061161007 is a prime.

It is a super-3 number, since 3×1061161011³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1061161019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2032615 + ... + 2033136.

It is an arithmetic number, because the mean of its divisors is an integer number (132136940).

Almost surely, 2^1061161011 is an apocalyptic number.

1061161011 is a deficient number, since it is larger than the sum of its proper divisors (524482269).

1061161011 is a wasteful number, since it uses less digits than its factorization.

1061161011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065786 (or 4065783 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 1061161011 is about 32575.4663972751. The cubic root of 1061161011 is about 1019.9849449912.

Adding to 1061161011 its reverse (1101611601), we get a palindrome (2162772612).

The spelling of 1061161011 in words is "one billion, sixty-one million, one hundred sixty-one thousand, eleven".