21004046533012 has 24 divisors (see below), whose sum is σ = 37690289424704. Its totient is φ = 10238624301312.

The previous prime is 21004046533007. The next prime is 21004046533031. The reversal of 21004046533012 is 21033564040012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403960128 + ... + 404012119.

Almost surely, 2^{21004046533012} is an apocalyptic number.

It is an amenable number.

21004046533012 is a deficient number, since it is larger than the sum of its proper divisors (16686242891692).

21004046533012 is a wasteful number, since it uses less digits than its factorization.

21004046533012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807972415 (or 807972413 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 21004046533012 in words is "twenty-one trillion, four billion, forty-six million, five hundred thirty-three thousand, twelve".