20125300867 has 4 divisors (see below), whose sum is σ = 23000343856. Its totient is φ = 17250257880.

The previous prime is 20125300861. The next prime is 20125300873. The reversal of 20125300867 is 76800352102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20125300861) and next prime (20125300873).

It is a cyclic number.

It is not a de Polignac number, because 20125300867 - 2¹⁵ = 20125268099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20125300861) 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, 1437521484 + ... + 1437521497.

It is an arithmetic number, because the mean of its divisors is an integer number (5750085964).

Almost surely, 2^20125300867 is an apocalyptic number.

20125300867 is a deficient number, since it is larger than the sum of its proper divisors (2875042989).

20125300867 is an equidigital number, since it uses as much as digits as its factorization.

20125300867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875042988.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 20125300867 its reverse (76800352102), we get a palindrome (96925652969).

The spelling of 20125300867 in words is "twenty billion, one hundred twenty-five million, three hundred thousand, eight hundred sixty-seven".