2161104123033 has 24 divisors (see below), whose sum is σ = 3144305229000. Its totient is φ = 1430265199104.

The previous prime is 2161104123011. The next prime is 2161104123049. The reversal of 2161104123033 is 3303214011612.

It is a happy number.

2161104123033 is a `hidden beast` number, since 2 + 1 + 611 + 0 + 4 + 12 + 3 + 0 + 33 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 216828059904 + 1944276063129 = 465648^2 + 1394373^2 .

It is not a de Polignac number, because 2161104123033 - 2²⁰ = 2161103074457 is a prime.

It is a super-2 number, since 2×2161104123033² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2161104122988 and 2161104123006.

It is not an unprimeable number, because it can be changed into a prime (2161104123433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1948641 + ... + 2849457.

It is an arithmetic number, because the mean of its divisors is an integer number (131012717875).

Almost surely, 2^{2161104123033} is an apocalyptic number.

It is an amenable number.

2161104123033 is a deficient number, since it is larger than the sum of its proper divisors (983201105967).

2161104123033 is a wasteful number, since it uses less digits than its factorization.

2161104123033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902761 (or 902758 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 2161104123033 its reverse (3303214011612), we get a palindrome (5464318134645).

The spelling of 2161104123033 in words is "two trillion, one hundred sixty-one billion, one hundred four million, one hundred twenty-three thousand, thirty-three".