20112435125 has 16 divisors (see below), whose sum is σ = 25149711600. Its totient is φ = 16058286400.

The previous prime is 20112435103. The next prime is 20112435127. The reversal of 20112435125 is 52153421102.

It can be written as a sum of positive squares in 8 ways, for example, as 1503655729 + 18608779396 = 38777^2 + 136414^2 .

It is not a de Polignac number, because 20112435125 - 2⁶ = 20112435061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112435094 and 20112435103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112435127) 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, 94430 + ... + 221679.

It is an arithmetic number, because the mean of its divisors is an integer number (1571856975).

Almost surely, 2^20112435125 is an apocalyptic number.

20112435125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20112435125 is a deficient number, since it is larger than the sum of its proper divisors (5037276475).

20112435125 is an equidigital number, since it uses as much as digits as its factorization.

20112435125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316633 (or 316623 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20112435125 its reverse (52153421102), we get a palindrome (72265856227).

The spelling of 20112435125 in words is "twenty billion, one hundred twelve million, four hundred thirty-five thousand, one hundred twenty-five".