1353440420403 has 16 divisors (see below), whose sum is σ = 1899738153600. Its totient is φ = 854726783040.

The previous prime is 1353440420317. The next prime is 1353440420407. The reversal of 1353440420403 is 3040240443531.

It is not a de Polignac number, because 1353440420403 - 2¹⁰ = 1353440419379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1353440420407) 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 in 15 ways as a sum of consecutive naturals, for example, 443178 + ... + 1703903.

It is an arithmetic number, because the mean of its divisors is an integer number (118733634600).

Almost surely, 2^{1353440420403} is an apocalyptic number.

1353440420403 is a deficient number, since it is larger than the sum of its proper divisors (546297733197).

1353440420403 is a wasteful number, since it uses less digits than its factorization.

1353440420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158162.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 1353440420403 its reverse (3040240443531), we get a palindrome (4393680863934).

The spelling of 1353440420403 in words is "one trillion, three hundred fifty-three billion, four hundred forty million, four hundred twenty thousand, four hundred three".