20425112103 has 16 divisors (see below), whose sum is σ = 29814247296. Its totient is φ = 12335108640.

The previous prime is 20425112087. The next prime is 20425112129. The reversal of 20425112103 is 30121152402.

It is not a de Polignac number, because 20425112103 - 2⁴ = 20425112087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20425112103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425112153) 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, 1084200 + ... + 1102877.

It is an arithmetic number, because the mean of its divisors is an integer number (1863390456).

Almost surely, 2^20425112103 is an apocalyptic number.

20425112103 is a deficient number, since it is larger than the sum of its proper divisors (9389135193).

20425112103 is a wasteful number, since it uses less digits than its factorization.

20425112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187374.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20425112103 its reverse (30121152402), we get a palindrome (50546264505).

The spelling of 20425112103 in words is "twenty billion, four hundred twenty-five million, one hundred twelve thousand, one hundred three".