11161071206021 has 24 divisors (see below), whose sum is σ = 12283809963264. Its totient is φ = 10140942240000.

The previous prime is 11161071206003. The next prime is 11161071206029. The reversal of 11161071206021 is 12060217016111.

It is a de Polignac number, because none of the positive numbers 2^k-11161071206021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161071206029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314192741 + ... + 314228261.

It is an arithmetic number, because the mean of its divisors is an integer number (511825415136).

Almost surely, 2^{11161071206021} is an apocalyptic number.

11161071206021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11161071206021 is a deficient number, since it is larger than the sum of its proper divisors (1122738757243).

11161071206021 is an frugal number, since it uses more digits than its factorization.

11161071206021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37527 (or 37483 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 11161071206021 in words is "eleven trillion, one hundred sixty-one billion, seventy-one million, two hundred six thousand, twenty-one".