21032532351012 has 144 divisors (see below), whose sum is σ = 60740719119360. Its totient is φ = 5546335826304.

The previous prime is 21032532350953. The next prime is 21032532351041. The reversal of 21032532351012 is 21015323523012.

It is a super-3 number, since 3×21032532351012³ (a number of 41 digits) contains 333 as substring.

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, 116586793 + ... + 116767055.

It is an arithmetic number, because the mean of its divisors is an integer number (421810549440).

Almost surely, 2^{21032532351012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21032532351012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30370359559680).

21032532351012 is an abundant number, since it is smaller than the sum of its proper divisors (39708186768348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21032532351012 is a wasteful number, since it uses less digits than its factorization.

21032532351012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188522 (or 188507 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 21032532351012 its reverse (21015323523012), we get a palindrome (42047855874024).

The spelling of 21032532351012 in words is "twenty-one trillion, thirty-two billion, five hundred thirty-two million, three hundred fifty-one thousand, twelve".