21004203132232 has 64 divisors (see below), whose sum is σ = 40501539878400. Its totient is φ = 10204561128960.

The previous prime is 21004203132191. The next prime is 21004203132251. The reversal of 21004203132232 is 23223130240012.

It is a junction number, because it is equal to n+sod(n) for n = 21004203132197 and 21004203132206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038105988 + ... + 1038126220.

It is an arithmetic number, because the mean of its divisors is an integer number (632836560600).

Almost surely, 2^{21004203132232} is an apocalyptic number.

It is an amenable number.

21004203132232 is a deficient number, since it is larger than the sum of its proper divisors (19497336746168).

21004203132232 is a wasteful number, since it uses less digits than its factorization.

21004203132232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24806 (or 24802 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21004203132232 its reverse (23223130240012), we get a palindrome (44227333372244).

The spelling of 21004203132232 in words is "twenty-one trillion, four billion, two hundred three million, one hundred thirty-two thousand, two hundred thirty-two".