235304031161 has 4 divisors (see below), whose sum is σ = 243417963300. Its totient is φ = 227190099024.

The previous prime is 235304031139. The next prime is 235304031271. The reversal of 235304031161 is 161130403532.

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 173998271161 + 61305760000 = 417131^2 + 247600^2 .

It is a cyclic number.

It is not a de Polignac number, because 235304031161 - 2²² = 235299836857 is a prime.

It is a super-3 number, since 3×235304031161³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 8113932109 = 235304031161 / (2 + 3 + 5 + 3 + 0 + 4 + 0 + 3 + 1 + 1 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235304031121) 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, 4056966026 + ... + 4056966083.

It is an arithmetic number, because the mean of its divisors is an integer number (60854490825).

Almost surely, 2^235304031161 is an apocalyptic number.

It is an amenable number.

235304031161 is a deficient number, since it is larger than the sum of its proper divisors (8113932139).

235304031161 is an equidigital number, since it uses as much as digits as its factorization.

235304031161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113932138.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 235304031161 its reverse (161130403532), we get a palindrome (396434434693).

The spelling of 235304031161 in words is "two hundred thirty-five billion, three hundred four million, thirty-one thousand, one hundred sixty-one".