2153520021001 has 32 divisors (see below), whose sum is σ = 2322001987200. Its totient is φ = 1993128184320.

The previous prime is 2153520020999. The next prime is 2153520021047. The reversal of 2153520021001 is 1001200253512.

It is not a de Polignac number, because 2153520021001 - 2¹ = 2153520020999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153520021071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156920926 + ... + 156934648.

It is an arithmetic number, because the mean of its divisors is an integer number (72562562100).

Almost surely, 2^{2153520021001} is an apocalyptic number.

It is an amenable number.

2153520021001 is a deficient number, since it is larger than the sum of its proper divisors (168481966199).

2153520021001 is a wasteful number, since it uses less digits than its factorization.

2153520021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16089.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 2153520021001 its reverse (1001200253512), we get a palindrome (3154720274513).

The spelling of 2153520021001 in words is "two trillion, one hundred fifty-three billion, five hundred twenty million, twenty-one thousand, one".