13725301243 has 4 divisors (see below), whose sum is σ = 14168052928. Its totient is φ = 13282549560.

The previous prime is 13725301229. The next prime is 13725301253. The reversal of 13725301243 is 34210352731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34210352731 = 179 ⋅191119289.

It is a cyclic number.

It is not a de Polignac number, because 13725301243 - 2⁵ = 13725301211 is a prime.

It is a super-2 number, since 2×13725301243² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 442751653 = 13725301243 / (1 + 3 + 7 + 2 + 5 + 3 + 0 + 1 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13725301253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221375796 + ... + 221375857.

It is an arithmetic number, because the mean of its divisors is an integer number (3542013232).

Almost surely, 2^13725301243 is an apocalyptic number.

13725301243 is a deficient number, since it is larger than the sum of its proper divisors (442751685).

13725301243 is an equidigital number, since it uses as much as digits as its factorization.

13725301243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442751684.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 13725301243 its reverse (34210352731), we get a palindrome (47935653974).

The spelling of 13725301243 in words is "thirteen billion, seven hundred twenty-five million, three hundred one thousand, two hundred forty-three".