235113231 has 4 divisors (see below), whose sum is σ = 313484312. Its totient is φ = 156742152.

The previous prime is 235113211. The next prime is 235113253. The reversal of 235113231 is 132311532.

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

It is not a de Polignac number, because 235113231 - 2⁷ = 235113103 is a prime.

It is a super-2 number, since 2×235113231² = 110556462782518722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235113198 and 235113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235113211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39185536 + ... + 39185541.

It is an arithmetic number, because the mean of its divisors is an integer number (78371078).

Almost surely, 2^235113231 is an apocalyptic number.

235113231 is a deficient number, since it is larger than the sum of its proper divisors (78371081).

235113231 is an equidigital number, since it uses as much as digits as its factorization.

235113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78371080.

The product of its digits is 540, while the sum is 21.

The square root of 235113231 is about 15333.4024599891. The cubic root of 235113231 is about 617.1996767188.

Adding to 235113231 its reverse (132311532), we get a palindrome (367424763).

The spelling of 235113231 in words is "two hundred thirty-five million, one hundred thirteen thousand, two hundred thirty-one".