1323203043402 has 56 divisors (see below), whose sum is σ = 3071840649600. Its totient is φ = 426839676840.

The previous prime is 1323203043391. The next prime is 1323203043439. The reversal of 1323203043402 is 2043403023231.

1323203043402 is a `hidden beast` number, since 1 + 3 + 2 + 320 + 304 + 34 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14592652 + ... + 14683047.

Almost surely, 2^{1323203043402} is an apocalyptic number.

1323203043402 is an abundant number, since it is smaller than the sum of its proper divisors (1748637606198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323203043402 is an equidigital number, since it uses as much as digits as its factorization.

1323203043402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29275750 (or 29275735 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 1323203043402 its reverse (2043403023231), we get a palindrome (3366606066633).

The spelling of 1323203043402 in words is "one trillion, three hundred twenty-three billion, two hundred three million, forty-three thousand, four hundred two".