234420013 has 2 divisors, whose sum is σ = 234420014. Its totient is φ = 234420012.

The previous prime is 234419993. The next prime is 234420019. The reversal of 234420013 is 310024432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231587524 + 2832489 = 15218^2 + 1683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234420013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234420019) 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, 117210006 + 117210007.

It is an arithmetic number, because the mean of its divisors is an integer number (117210007).

Almost surely, 2^234420013 is an apocalyptic number.

It is an amenable number.

234420013 is a deficient number, since it is larger than the sum of its proper divisors (1).

234420013 is an equidigital number, since it uses as much as digits as its factorization.

234420013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 234420013 is about 15310.7809402395. The cubic root of 234420013 is about 616.5924868486.

Adding to 234420013 its reverse (310024432), we get a palindrome (544444445).

The spelling of 234420013 in words is "two hundred thirty-four million, four hundred twenty thousand, thirteen".