213830303653 has 4 divisors (see below), whose sum is σ = 213877647180. Its totient is φ = 213782960128.

The previous prime is 213830303639. The next prime is 213830303693. The reversal of 213830303653 is 356303038312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43981639524 + 169848664129 = 209718^2 + 412127^2 .

It is a cyclic number.

It is not a de Polignac number, because 213830303653 - 2¹³ = 213830295461 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 (213830303693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23664988 + ... + 23674021.

It is an arithmetic number, because the mean of its divisors is an integer number (53469411795).

Almost surely, 2^213830303653 is an apocalyptic number.

It is an amenable number.

213830303653 is a deficient number, since it is larger than the sum of its proper divisors (47343527).

213830303653 is an equidigital number, since it uses as much as digits as its factorization.

213830303653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47343526.

The product of its (nonzero) digits is 116640, while the sum is 37.

The spelling of 213830303653 in words is "two hundred thirteen billion, eight hundred thirty million, three hundred three thousand, six hundred fifty-three".