2104021011123 has 12 divisors (see below), whose sum is σ = 3070472817048. Its totient is φ = 1388220048000.

The previous prime is 2104021011101. The next prime is 2104021011133. The reversal of 2104021011123 is 3211101204012.

It is not a de Polignac number, because 2104021011123 - 2¹² = 2104021007027 is a prime.

It is a super-2 number, since 2×2104021011123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2104021011096 and 2104021011105.

It is not an unprimeable number, because it can be changed into a prime (2104021011133) 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 11 ways as a sum of consecutive naturals, for example, 1205051253 + ... + 1205052998.

It is an arithmetic number, because the mean of its divisors is an integer number (255872734754).

Almost surely, 2^{2104021011123} is an apocalyptic number.

2104021011123 is a deficient number, since it is larger than the sum of its proper divisors (966451805925).

2104021011123 is a wasteful number, since it uses less digits than its factorization.

2104021011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410104354 (or 2410104351 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2104021011123 its reverse (3211101204012), we get a palindrome (5315122215135).

The spelling of 2104021011123 in words is "two trillion, one hundred four billion, twenty-one million, eleven thousand, one hundred twenty-three".