234341205421 has 2 divisors, whose sum is σ = 234341205422. Its totient is φ = 234341205420.

The previous prime is 234341205391. The next prime is 234341205431. The reversal of 234341205421 is 124502143432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220308196900 + 14033008521 = 469370^2 + 118461^2 .

It is a cyclic number.

It is not a de Polignac number, because 234341205421 - 2²⁹ = 233804334509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234341205431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117170602710 + 117170602711.

It is an arithmetic number, because the mean of its divisors is an integer number (117170602711).

Almost surely, 2^234341205421 is an apocalyptic number.

It is an amenable number.

234341205421 is a deficient number, since it is larger than the sum of its proper divisors (1).

234341205421 is an equidigital number, since it uses as much as digits as its factorization.

234341205421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 234341205421 its reverse (124502143432), we get a palindrome (358843348853).

The spelling of 234341205421 in words is "two hundred thirty-four billion, three hundred forty-one million, two hundred five thousand, four hundred twenty-one".