20132120525 has 12 divisors (see below), whose sum is σ = 27233268864. Its totient is φ = 14641542000.

The previous prime is 20132120521. The next prime is 20132120531. The reversal of 20132120525 is 52502123102.

It is not a de Polignac number, because 20132120525 - 2² = 20132120521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20132120525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132120521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36603581 + ... + 36604130.

It is an arithmetic number, because the mean of its divisors is an integer number (2269439072).

Almost surely, 2^20132120525 is an apocalyptic number.

20132120525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20132120525 is a deficient number, since it is larger than the sum of its proper divisors (7101148339).

20132120525 is a wasteful number, since it uses less digits than its factorization.

20132120525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73207732 (or 73207727 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20132120525 its reverse (52502123102), we get a palindrome (72634243627).

The spelling of 20132120525 in words is "twenty billion, one hundred thirty-two million, one hundred twenty thousand, five hundred twenty-five".