21113002032 has 80 divisors (see below), whose sum is σ = 58290233472. Its totient is φ = 6561756160.

The previous prime is 21113001991. The next prime is 21113002091. The reversal of 21113002032 is 23020031112.

It is a super-2 number, since 2×21113002032² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33594 + ... + 208217.

Almost surely, 2^21113002032 is an apocalyptic number.

It is an amenable number.

21113002032 is an abundant number, since it is smaller than the sum of its proper divisors (37177231440).

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

21113002032 is a wasteful number, since it uses less digits than its factorization.

21113002032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241946 (or 241940 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21113002032 its reverse (23020031112), we get a palindrome (44133033144).

The spelling of 21113002032 in words is "twenty-one billion, one hundred thirteen million, two thousand, thirty-two".