2021113323123 has 16 divisors (see below), whose sum is σ = 2696387788800. Its totient is φ = 1346624021120.

The previous prime is 2021113323083. The next prime is 2021113323181. The reversal of 2021113323123 is 3213233111202.

It is a cyclic number.

It is not a de Polignac number, because 2021113323123 - 2¹³ = 2021113314931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021113323093 and 2021113323102.

It is not an unprimeable number, because it can be changed into a prime (2021113523123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104219758 + ... + 104239148.

It is an arithmetic number, because the mean of its divisors is an integer number (168524236800).

Almost surely, 2^{2021113323123} is an apocalyptic number.

2021113323123 is a deficient number, since it is larger than the sum of its proper divisors (675274465677).

2021113323123 is a wasteful number, since it uses less digits than its factorization.

2021113323123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37842.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2021113323123 its reverse (3213233111202), we get a palindrome (5234346434325).

The spelling of 2021113323123 in words is "two trillion, twenty-one billion, one hundred thirteen million, three hundred twenty-three thousand, one hundred twenty-three".