21133213032 has 32 divisors (see below), whose sum is σ = 52836775200. Its totient is φ = 7043905344.

The previous prime is 21133213001. The next prime is 21133213063. The reversal of 21133213032 is 23031233112.

It is an interprime number because it is at equal distance from previous prime (21133213001) and next prime (21133213063).

It is a super-2 number, since 2×21133213032² (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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497743 + ... + 538529.

It is an arithmetic number, because the mean of its divisors is an integer number (1651149225).

Almost surely, 2^21133213032 is an apocalyptic number.

It is an amenable number.

21133213032 is an abundant number, since it is smaller than the sum of its proper divisors (31703562168).

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

21133213032 is a wasteful number, since it uses less digits than its factorization.

21133213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62385 (or 62381 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21133213032 its reverse (23031233112), we get a palindrome (44164446144).

The spelling of 21133213032 in words is "twenty-one billion, one hundred thirty-three million, two hundred thirteen thousand, thirty-two".