21153011625111 has 16 divisors (see below), whose sum is σ = 28507300062080. Its totient is φ = 13951082455200.

The previous prime is 21153011625091. The next prime is 21153011625121. The reversal of 21153011625111 is 11152611035112.

It is not a de Polignac number, because 21153011625111 - 2⁶ = 21153011625047 is a prime.

It is a super-2 number, since 2×21153011625111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21153011625121) 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, 89505040 + ... + 89741061.

It is an arithmetic number, because the mean of its divisors is an integer number (1781706253880).

Almost surely, 2^{21153011625111} is an apocalyptic number.

21153011625111 is a deficient number, since it is larger than the sum of its proper divisors (7354288436969).

21153011625111 is a wasteful number, since it uses less digits than its factorization.

21153011625111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179246526.

The product of its (nonzero) digits is 1800, while the sum is 30.

The spelling of 21153011625111 in words is "twenty-one trillion, one hundred fifty-three billion, eleven million, six hundred twenty-five thousand, one hundred eleven".