213214635503 has 16 divisors (see below), whose sum is σ = 217945782432. Its totient is φ = 208510848000.

The previous prime is 213214635451. The next prime is 213214635521. The reversal of 213214635503 is 305536412312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213214635503 - 2³² = 208919668207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213214635563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22389383 + ... + 22398903.

It is an arithmetic number, because the mean of its divisors is an integer number (13621611402).

Almost surely, 2^213214635503 is an apocalyptic number.

213214635503 is a deficient number, since it is larger than the sum of its proper divisors (4731146929).

213214635503 is an equidigital number, since it uses as much as digits as its factorization.

213214635503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10906.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 213214635503 in words is "two hundred thirteen billion, two hundred fourteen million, six hundred thirty-five thousand, five hundred three".