235220231 has 8 divisors (see below), whose sum is σ = 238819104. Its totient is φ = 231629440.

The previous prime is 235220221. The next prime is 235220233. The reversal of 235220231 is 132022532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 235220231 - 2¹⁰ = 235219207 is a prime.

It is a super-2 number, since 2×235220231² = 110657114143386722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235220233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83315 + ... + 86091.

It is an arithmetic number, because the mean of its divisors is an integer number (29852388).

Almost surely, 2^235220231 is an apocalyptic number.

235220231 is a deficient number, since it is larger than the sum of its proper divisors (3598873).

235220231 is a wasteful number, since it uses less digits than its factorization.

235220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 235220231 is about 15336.8911778104. The cubic root of 235220231 is about 617.2932916823.

Adding to 235220231 its reverse (132022532), we get a palindrome (367242763).

The spelling of 235220231 in words is "two hundred thirty-five million, two hundred twenty thousand, two hundred thirty-one".