20343104125 has 32 divisors (see below), whose sum is σ = 26516655360. Its totient is φ = 15566040000.

The previous prime is 20343104087. The next prime is 20343104137. The reversal of 20343104125 is 52140134302.

It is not a de Polignac number, because 20343104125 - 2¹⁹ = 20342579837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 20343104125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235600 + ... + 310150.

It is an arithmetic number, because the mean of its divisors is an integer number (828645480).

Almost surely, 2^20343104125 is an apocalyptic number.

20343104125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20343104125 is a deficient number, since it is larger than the sum of its proper divisors (6173551235).

20343104125 is an equidigital number, since it uses as much as digits as its factorization.

20343104125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74662 (or 74652 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20343104125 its reverse (52140134302), we get a palindrome (72483238427).

The spelling of 20343104125 in words is "twenty billion, three hundred forty-three million, one hundred four thousand, one hundred twenty-five".