2123020023 has 16 divisors (see below), whose sum is σ = 2931418080. Its totient is φ = 1365088256.

The previous prime is 2123020001. The next prime is 2123020049. The reversal of 2123020023 is 3200203212.

It is a cyclic number.

It is not a de Polignac number, because 2123020023 - 2¹⁷ = 2122888951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123019984 and 2123020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124020023) 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, 72511 + ... + 97487.

It is an arithmetic number, because the mean of its divisors is an integer number (183213630).

Almost surely, 2^2123020023 is an apocalyptic number.

2123020023 is a deficient number, since it is larger than the sum of its proper divisors (808398057).

2123020023 is a wasteful number, since it uses less digits than its factorization.

2123020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25986.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2123020023 is about 46076.2414157231. The cubic root of 2123020023 is about 1285.2413709809.

Adding to 2123020023 its reverse (3200203212), we get a palindrome (5323223235).

The spelling of 2123020023 in words is "two billion, one hundred twenty-three million, twenty thousand, twenty-three".