213042436553 has 16 divisors (see below), whose sum is σ = 227946061824. Its totient is φ = 198771716880.

The previous prime is 213042436547. The next prime is 213042436597. The reversal of 213042436553 is 355634240312.

It is a cyclic number.

It is not a de Polignac number, because 213042436553 - 2²⁴ = 213025659337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213042436543) 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, 993575 + ... + 1188812.

It is an arithmetic number, because the mean of its divisors is an integer number (14246628864).

Almost surely, 2^213042436553 is an apocalyptic number.

It is an amenable number.

213042436553 is a deficient number, since it is larger than the sum of its proper divisors (14903625271).

213042436553 is a wasteful number, since it uses less digits than its factorization.

213042436553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182532.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 213042436553 its reverse (355634240312), we get a palindrome (568676676865).

The spelling of 213042436553 in words is "two hundred thirteen billion, forty-two million, four hundred thirty-six thousand, five hundred fifty-three".