421203441011 has 2 divisors, whose sum is σ = 421203441012. Its totient is φ = 421203441010.

The previous prime is 421203440981. The next prime is 421203441013. The reversal of 421203441011 is 110144302124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421203441011 - 2⁶ = 421203440947 is a prime.

Together with 421203441013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421203441013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210601720505 + 210601720506.

It is an arithmetic number, because the mean of its divisors is an integer number (210601720506).

Almost surely, 2^421203441011 is an apocalyptic number.

421203441011 is a deficient number, since it is larger than the sum of its proper divisors (1).

421203441011 is an equidigital number, since it uses as much as digits as its factorization.

421203441011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 421203441011 its reverse (110144302124), we get a palindrome (531347743135).

The spelling of 421203441011 in words is "four hundred twenty-one billion, two hundred three million, four hundred forty-one thousand, eleven".