234381331 has 2 divisors, whose sum is σ = 234381332. Its totient is φ = 234381330.

The previous prime is 234381311. The next prime is 234381353. The reversal of 234381331 is 133183432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234381331 - 2²¹ = 232284179 is a prime.

It is a super-2 number, since 2×234381331² = 109869216642663122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234381331.

It is not a weakly prime, because it can be changed into another prime (234381311) 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 as a sum of consecutive naturals, namely, 117190665 + 117190666.

It is an arithmetic number, because the mean of its divisors is an integer number (117190666).

Almost surely, 2^234381331 is an apocalyptic number.

234381331 is a deficient number, since it is larger than the sum of its proper divisors (1).

234381331 is an equidigital number, since it uses as much as digits as its factorization.

234381331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 234381331 is about 15309.5176605927. The cubic root of 234381331 is about 616.5585700308.

The spelling of 234381331 in words is "two hundred thirty-four million, three hundred eighty-one thousand, three hundred thirty-one".