11161012650121 has 8 divisors (see below), whose sum is σ = 11264625024840. Its totient is φ = 11057422416768.

The previous prime is 11161012650119. The next prime is 11161012650127. The reversal of 11161012650121 is 12105621016111.

It can be written as a sum of positive squares in 4 ways, for example, as 2800471718521 + 8360540931600 = 1673461^2 + 2891460^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11161012650121 - 2¹ = 11161012650119 is a prime.

It is a super-2 number, since 2×11161012650121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11161012650121.

It is not an unprimeable number, because it can be changed into a prime (11161012650127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4521646 + ... + 6539671.

It is an arithmetic number, because the mean of its divisors is an integer number (1408078128105).

Almost surely, 2^{11161012650121} is an apocalyptic number.

It is an amenable number.

11161012650121 is a deficient number, since it is larger than the sum of its proper divisors (103612374719).

11161012650121 is a wasteful number, since it uses less digits than its factorization.

11161012650121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070683.

The product of its (nonzero) digits is 720, while the sum is 28.

Adding to 11161012650121 its reverse (12105621016111), we get a palindrome (23266633666232).

The spelling of 11161012650121 in words is "eleven trillion, one hundred sixty-one billion, twelve million, six hundred fifty thousand, one hundred twenty-one".