21140525140329 has 32 divisors (see below), whose sum is σ = 32383250482176. Its totient is φ = 12016902421440.

The previous prime is 21140525140313. The next prime is 21140525140439. The reversal of 21140525140329 is 92304152504112.

It is not a de Polignac number, because 21140525140329 - 2⁴ = 21140525140313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21140525140829) 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, 23667814 + ... + 24544784.

It is an arithmetic number, because the mean of its divisors is an integer number (1011976577568).

Almost surely, 2^{21140525140329} is an apocalyptic number.

It is an amenable number.

21140525140329 is a deficient number, since it is larger than the sum of its proper divisors (11242725341847).

21140525140329 is a wasteful number, since it uses less digits than its factorization.

21140525140329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883005.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 21140525140329 in words is "twenty-one trillion, one hundred forty billion, five hundred twenty-five million, one hundred forty thousand, three hundred twenty-nine".