2123033221123 has 4 divisors (see below), whose sum is σ = 2123036227960. Its totient is φ = 2123030214288.

The previous prime is 2123033221097. The next prime is 2123033221147. The reversal of 2123033221123 is 3211223303212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2123033221123 - 2¹⁷ = 2123033090051 is a prime.

It is a super-2 number, since 2×2123033221123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123033221523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196036 + ... + 2069902.

It is an arithmetic number, because the mean of its divisors is an integer number (530759056990).

Almost surely, 2^{2123033221123} is an apocalyptic number.

2123033221123 is a deficient number, since it is larger than the sum of its proper divisors (3006837).

2123033221123 is a wasteful number, since it uses less digits than its factorization.

2123033221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006836.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2123033221123 its reverse (3211223303212), we get a palindrome (5334256524335).

The spelling of 2123033221123 in words is "two trillion, one hundred twenty-three billion, thirty-three million, two hundred twenty-one thousand, one hundred twenty-three".