2223940123 has 4 divisors (see below), whose sum is σ = 2224390000. Its totient is φ = 2223490248.

The previous prime is 2223940087. The next prime is 2223940129. The reversal of 2223940123 is 3210493222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2223940123 - 2²¹ = 2221842971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2223940091 and 2223940100.

It is not an unprimeable number, because it can be changed into a prime (2223940129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217440 + ... + 227437.

It is an arithmetic number, because the mean of its divisors is an integer number (556097500).

Almost surely, 2^2223940123 is an apocalyptic number.

2223940123 is a deficient number, since it is larger than the sum of its proper divisors (449877).

2223940123 is an equidigital number, since it uses as much as digits as its factorization.

2223940123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449876.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2223940123 is about 47158.6696483266. The cubic root of 2223940123 is about 1305.2920614839.

The spelling of 2223940123 in words is "two billion, two hundred twenty-three million, nine hundred forty thousand, one hundred twenty-three".