403343121091 has 2 divisors, whose sum is σ = 403343121092. Its totient is φ = 403343121090.

The previous prime is 403343121029. The next prime is 403343121121. The reversal of 403343121091 is 190121343304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403343121091 is a prime.

It is not a weakly prime, because it can be changed into another prime (403343121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201671560545 + 201671560546.

It is an arithmetic number, because the mean of its divisors is an integer number (201671560546).

Almost surely, 2^403343121091 is an apocalyptic number.

403343121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

403343121091 is an equidigital number, since it uses as much as digits as its factorization.

403343121091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 403343121091 its reverse (190121343304), we get a palindrome (593464464395).

The spelling of 403343121091 in words is "four hundred three billion, three hundred forty-three million, one hundred twenty-one thousand, ninety-one".