1245350421423 has 12 divisors (see below), whose sum is σ = 1798877414880. Its totient is φ = 830216114016.

The previous prime is 1245350421421. The next prime is 1245350421457. The reversal of 1245350421423 is 3241240535421.

It is a happy number.

1245350421423 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 3 + 504 + 2 + 142 + 3 = 666.

It is not a de Polignac number, because 1245350421423 - 2¹ = 1245350421421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245350421421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000086 + ... + 1868387.

It is an arithmetic number, because the mean of its divisors is an integer number (149906451240).

Almost surely, 2^{1245350421423} is an apocalyptic number.

1245350421423 is a deficient number, since it is larger than the sum of its proper divisors (553526993457).

1245350421423 is a wasteful number, since it uses less digits than its factorization.

1245350421423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916718 (or 2916715 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 1245350421423 its reverse (3241240535421), we get a palindrome (4486590956844).

The spelling of 1245350421423 in words is "one trillion, two hundred forty-five billion, three hundred fifty million, four hundred twenty-one thousand, four hundred twenty-three".