213413533453 has 32 divisors (see below), whose sum is σ = 225002292480. Its totient is φ = 202232309760.

The previous prime is 213413533451. The next prime is 213413533477. The reversal of 213413533453 is 354335314312.

It is a happy number.

It is not a de Polignac number, because 213413533453 - 2¹ = 213413533451 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 (213413533451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89181225 + ... + 89183617.

It is an arithmetic number, because the mean of its divisors is an integer number (7031321640).

Almost surely, 2^213413533453 is an apocalyptic number.

It is an amenable number.

213413533453 is a deficient number, since it is larger than the sum of its proper divisors (11588759027).

213413533453 is a wasteful number, since it uses less digits than its factorization.

213413533453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949.

The product of its digits is 194400, while the sum is 37.

Adding to 213413533453 its reverse (354335314312), we get a palindrome (567748847765).

The spelling of 213413533453 in words is "two hundred thirteen billion, four hundred thirteen million, five hundred thirty-three thousand, four hundred fifty-three".