20101320032120 has 16 divisors (see below), whose sum is σ = 45227970072360. Its totient is φ = 8040528012832.

The previous prime is 20101320031997. The next prime is 20101320032137. The reversal of 20101320032120 is 2123002310102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251266500362 + ... + 251266500441.

Almost surely, 2^{20101320032120} is an apocalyptic number.

20101320032120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101320032120 is an abundant number, since it is smaller than the sum of its proper divisors (25126650040240).

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

20101320032120 is a wasteful number, since it uses less digits than its factorization.

20101320032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502533000814 (or 502533000810 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20101320032120 its reverse (2123002310102), we get a palindrome (22224322342222).

The spelling of 20101320032120 in words is "twenty trillion, one hundred one billion, three hundred twenty million, thirty-two thousand, one hundred twenty".