12450541243 has 32 divisors (see below), whose sum is σ = 15308891136. Its totient is φ = 9883327488.

The previous prime is 12450541219. The next prime is 12450541247. The reversal of 12450541243 is 34214505421.

It is a cyclic number.

It is not a de Polignac number, because 12450541243 - 2¹⁷ = 12450410171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12450541247) 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 31 ways as a sum of consecutive naturals, for example, 2595255 + ... + 2600047.

It is an arithmetic number, because the mean of its divisors is an integer number (478402848).

Almost surely, 2^12450541243 is an apocalyptic number.

12450541243 is a deficient number, since it is larger than the sum of its proper divisors (2858349893).

12450541243 is a wasteful number, since it uses less digits than its factorization.

12450541243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 12450541243 in words is "twelve billion, four hundred fifty million, five hundred forty-one thousand, two hundred forty-three".