234118431 has 20 divisors (see below), whose sum is σ = 355667400. Its totient is φ = 153430416.

The previous prime is 234118397. The next prime is 234118433. The reversal of 234118431 is 134811432.

It is not a de Polignac number, because 234118431 - 2¹⁰ = 234117407 is a prime.

It is a super-2 number, since 2×234118431² = 109622879467803522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 234118395 and 234118404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234118433) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19716 + ... + 29273.

It is an arithmetic number, because the mean of its divisors is an integer number (17783370).

Almost surely, 2^234118431 is an apocalyptic number.

234118431 is a deficient number, since it is larger than the sum of its proper divisors (121548969).

234118431 is an equidigital number, since it uses as much as digits as its factorization.

234118431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49060 (or 49051 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 234118431 is about 15300.9290894377. The cubic root of 234118431 is about 616.3279573926.

Adding to 234118431 its reverse (134811432), we get a palindrome (368929863).

The spelling of 234118431 in words is "two hundred thirty-four million, one hundred eighteen thousand, four hundred thirty-one".