235220204613 has 4 divisors (see below), whose sum is σ = 313626939488. Its totient is φ = 156813469740.

The previous prime is 235220204581. The next prime is 235220204633. The reversal of 235220204613 is 316402022532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 235220204613 - 2⁵ = 235220204581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235220204633) 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, 39203367433 + ... + 39203367438.

It is an arithmetic number, because the mean of its divisors is an integer number (78406734872).

Almost surely, 2^235220204613 is an apocalyptic number.

It is an amenable number.

235220204613 is a deficient number, since it is larger than the sum of its proper divisors (78406734875).

235220204613 is an equidigital number, since it uses as much as digits as its factorization.

235220204613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78406734874.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 235220204613 in words is "two hundred thirty-five billion, two hundred twenty million, two hundred four thousand, six hundred thirteen".