21113151153325 has 48 divisors (see below), whose sum is σ = 32644051646976. Its totient is φ = 13159965700800.

The previous prime is 21113151153287. The next prime is 21113151153343. The reversal of 21113151153325 is 52335115131112.

It is not a de Polignac number, because 21113151153325 - 2¹¹ = 21113151151277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16641934 + ... + 17865616.

It is an arithmetic number, because the mean of its divisors is an integer number (680084409312).

Almost surely, 2^{21113151153325} is an apocalyptic number.

21113151153325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21113151153325 is a deficient number, since it is larger than the sum of its proper divisors (11530900493651).

21113151153325 is a wasteful number, since it uses less digits than its factorization.

21113151153325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232674 (or 1232669 counting only the distinct ones).

The product of its digits is 13500, while the sum is 34.

Adding to 21113151153325 its reverse (52335115131112), we get a palindrome (73448266284437).

The spelling of 21113151153325 in words is "twenty-one trillion, one hundred thirteen billion, one hundred fifty-one million, one hundred fifty-three thousand, three hundred twenty-five".