21052101353151 has 16 divisors (see below), whose sum is σ = 31677143103360. Its totient is φ = 12318888983520.

The previous prime is 21052101353141. The next prime is 21052101353191. The reversal of 21052101353151 is 15135310125012.

It is not a de Polignac number, because 21052101353151 - 2²² = 21052097158847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21052101353141) 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, 10999007065 + ... + 10999008978.

It is an arithmetic number, because the mean of its divisors is an integer number (1979821443960).

Almost surely, 2^{21052101353151} is an apocalyptic number.

21052101353151 is a deficient number, since it is larger than the sum of its proper divisors (10625041750209).

21052101353151 is a wasteful number, since it uses less digits than its factorization.

21052101353151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21998016086.

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 21052101353151 its reverse (15135310125012), we get a palindrome (36187411478163).

The spelling of 21052101353151 in words is "twenty-one trillion, fifty-two billion, one hundred one million, three hundred fifty-three thousand, one hundred fifty-one".