2123445266 has 8 divisors (see below), whose sum is σ = 3225486720. Its totient is φ = 1048283028.

The previous prime is 2123445217. The next prime is 2123445277. The reversal of 2123445266 is 6625443212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6719606 + ... + 6719921.

It is an arithmetic number, because the mean of its divisors is an integer number (403185840).

Almost surely, 2^2123445266 is an apocalyptic number.

2123445266 is a deficient number, since it is larger than the sum of its proper divisors (1102041454).

2123445266 is a wasteful number, since it uses less digits than its factorization.

2123445266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13439608.

The product of its digits is 69120, while the sum is 35.

The square root of 2123445266 is about 46080.8557429221. The cubic root of 2123445266 is about 1285.3271769560.

Adding to 2123445266 its reverse (6625443212), we get a palindrome (8748888478).

The spelling of 2123445266 in words is "two billion, one hundred twenty-three million, four hundred forty-five thousand, two hundred sixty-six".