20125424343 has 16 divisors (see below), whose sum is σ = 27016478336. Its totient is φ = 13325770080.

The previous prime is 20125424303. The next prime is 20125424357. The reversal of 20125424343 is 34342452102.

It is not a de Polignac number, because 20125424343 - 2⁹ = 20125423831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20125424343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125424303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768048 + ... + 793818.

It is an arithmetic number, because the mean of its divisors is an integer number (1688529896).

Almost surely, 2^20125424343 is an apocalyptic number.

20125424343 is a deficient number, since it is larger than the sum of its proper divisors (6891053993).

20125424343 is a wasteful number, since it uses less digits than its factorization.

20125424343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27534.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20125424343 its reverse (34342452102), we get a palindrome (54467876445).

The spelling of 20125424343 in words is "twenty billion, one hundred twenty-five million, four hundred twenty-four thousand, three hundred forty-three".