2251024123 has 4 divisors (see below), whose sum is σ = 2251572120. Its totient is φ = 2250476128.

The previous prime is 2251024117. The next prime is 2251024133. The reversal of 2251024123 is 3214201522.

It is a happy number.

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 2251024123 - 2²⁵ = 2217469691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2251024094 and 2251024103.

It is not an unprimeable number, because it can be changed into a prime (2251024133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267790 + ... + 276067.

It is an arithmetic number, because the mean of its divisors is an integer number (562893030).

Almost surely, 2^2251024123 is an apocalyptic number.

2251024123 is a deficient number, since it is larger than the sum of its proper divisors (547997).

2251024123 is an equidigital number, since it uses as much as digits as its factorization.

2251024123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547996.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2251024123 is about 47444.9588786838. The cubic root of 2251024123 is about 1310.5694789138.

Adding to 2251024123 its reverse (3214201522), we get a palindrome (5465225645).

The spelling of 2251024123 in words is "two billion, two hundred fifty-one million, twenty-four thousand, one hundred twenty-three".