10423544249 has 2 divisors, whose sum is σ = 10423544250. Its totient is φ = 10423544248.

The previous prime is 10423544189. The next prime is 10423544251. The reversal of 10423544249 is 94244532401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9042678649 + 1380865600 = 95093^2 + 37160^2 .

It is a cyclic number.

It is not a de Polignac number, because 10423544249 - 2³² = 6128576953 is a prime.

Together with 10423544251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10423544279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5211772124 + 5211772125.

It is an arithmetic number, because the mean of its divisors is an integer number (5211772125).

Almost surely, 2^10423544249 is an apocalyptic number.

It is an amenable number.

10423544249 is a deficient number, since it is larger than the sum of its proper divisors (1).

10423544249 is an equidigital number, since it uses as much as digits as its factorization.

10423544249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 10423544249 in words is "ten billion, four hundred twenty-three million, five hundred forty-four thousand, two hundred forty-nine".