20101125305030 has 128 divisors (see below), whose sum is σ = 47766080609280. Its totient is φ = 5896432189440.

The previous prime is 20101125305003. The next prime is 20101125305033. The reversal of 20101125305030 is 3050352110102.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20101125304987 and 20101125305005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101125305033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 417193481 + ... + 417241659.

It is an arithmetic number, because the mean of its divisors is an integer number (373172504760).

Almost surely, 2^{20101125305030} is an apocalyptic number.

20101125305030 is an abundant number, since it is smaller than the sum of its proper divisors (27664955304250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101125305030 is a wasteful number, since it uses less digits than its factorization.

20101125305030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80094.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 20101125305030 its reverse (3050352110102), we get a palindrome (23151477415132).

The spelling of 20101125305030 in words is "twenty trillion, one hundred one billion, one hundred twenty-five million, three hundred five thousand, thirty".