353431321109 has 2 divisors, whose sum is σ = 353431321110. Its totient is φ = 353431321108.

The previous prime is 353431321081. The next prime is 353431321147. The reversal of 353431321109 is 901123134353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353055814225 + 375506884 = 594185^2 + 19378^2 .

It is a cyclic number.

It is not a de Polignac number, because 353431321109 - 2¹² = 353431317013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353431321609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176715660554 + 176715660555.

It is an arithmetic number, because the mean of its divisors is an integer number (176715660555).

Almost surely, 2^353431321109 is an apocalyptic number.

It is an amenable number.

353431321109 is a deficient number, since it is larger than the sum of its proper divisors (1).

353431321109 is an equidigital number, since it uses as much as digits as its factorization.

353431321109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 353431321109 in words is "three hundred fifty-three billion, four hundred thirty-one million, three hundred twenty-one thousand, one hundred nine".