235123131 has 8 divisors (see below), whose sum is σ = 313637184. Its totient is φ = 156678920.

The previous prime is 235123129. The next prime is 235123139. The reversal of 235123131 is 131321532.

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 235123131 - 2¹ = 235123129 is a prime.

It is a super-2 number, since 2×235123131² = 110565773462486322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 235123098 and 235123107.

It is not an unprimeable number, because it can be changed into a prime (235123139) 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, 9021 + ... + 23486.

It is an arithmetic number, because the mean of its divisors is an integer number (39204648).

Almost surely, 2^235123131 is an apocalyptic number.

235123131 is a deficient number, since it is larger than the sum of its proper divisors (78514053).

235123131 is a wasteful number, since it uses less digits than its factorization.

235123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34921.

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

The square root of 235123131 is about 15333.7252812224. The cubic root of 235123131 is about 617.2083394824.

Adding to 235123131 its reverse (131321532), we get a palindrome (366444663).

The spelling of 235123131 in words is "two hundred thirty-five million, one hundred twenty-three thousand, one hundred thirty-one".