234040031 has 2 divisors, whose sum is σ = 234040032. Its totient is φ = 234040030.

The previous prime is 234039941. The next prime is 234040039. The reversal of 234040031 is 130040432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234040031 is a prime.

It is a super-2 number, since 2×234040031² = 109549472220961922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234039991 and 234040009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234040039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117020015 + 117020016.

It is an arithmetic number, because the mean of its divisors is an integer number (117020016).

Almost surely, 2^234040031 is an apocalyptic number.

234040031 is a deficient number, since it is larger than the sum of its proper divisors (1).

234040031 is an equidigital number, since it uses as much as digits as its factorization.

234040031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 234040031 is about 15298.3669389906. The cubic root of 234040031 is about 616.2591524629.

Adding to 234040031 its reverse (130040432), we get a palindrome (364080463).

The spelling of 234040031 in words is "two hundred thirty-four million, forty thousand, thirty-one".