21532343030511 has 16 divisors (see below), whose sum is σ = 29888954104800. Its totient is φ = 13771619342208.

The previous prime is 21532343030399. The next prime is 21532343030563. The reversal of 21532343030511 is 11503034323512.

It is not a de Polignac number, because 21532343030511 - 2³⁷ = 21394904077039 is a prime.

It is a super-2 number, since 2×21532343030511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21532343030111) 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, 788197156 + ... + 788224473.

It is an arithmetic number, because the mean of its divisors is an integer number (1868059631550).

Almost surely, 2^{21532343030511} is an apocalyptic number.

21532343030511 is a deficient number, since it is larger than the sum of its proper divisors (8356611074289).

21532343030511 is a wasteful number, since it uses less digits than its factorization.

21532343030511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576421818.

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 21532343030511 in words is "twenty-one trillion, five hundred thirty-two billion, three hundred forty-three million, thirty thousand, five hundred eleven".