1326354432403 has 32 divisors (see below), whose sum is σ = 1798471729152. Its totient is φ = 944575344000.

The previous prime is 1326354432401. The next prime is 1326354432449. The reversal of 1326354432403 is 3042344536231.

It is a cyclic number.

It is not a de Polignac number, because 1326354432403 - 2¹ = 1326354432401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1326354432401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6458451 + ... + 6660652.

It is an arithmetic number, because the mean of its divisors is an integer number (56202241536).

Almost surely, 2^{1326354432403} is an apocalyptic number.

1326354432403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1326354432403 is a deficient number, since it is larger than the sum of its proper divisors (472117296749).

1326354432403 is a wasteful number, since it uses less digits than its factorization.

1326354432403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13119235.

The product of its (nonzero) digits is 622080, while the sum is 40.

Adding to 1326354432403 its reverse (3042344536231), we get a palindrome (4368698968634).

The spelling of 1326354432403 in words is "one trillion, three hundred twenty-six billion, three hundred fifty-four million, four hundred thirty-two thousand, four hundred three".