1553354342203 has 4 divisors (see below), whose sum is σ = 1556709319648. Its totient is φ = 1549999364760.

The previous prime is 1553354342191. The next prime is 1553354342219. The reversal of 1553354342203 is 3022434533551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1553354342203 - 2⁵ = 1553354342171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553354340203) 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 3 ways as a sum of consecutive naturals, for example, 1677488028 + ... + 1677488953.

It is an arithmetic number, because the mean of its divisors is an integer number (389177329912).

Almost surely, 2^{1553354342203} is an apocalyptic number.

1553354342203 is a deficient number, since it is larger than the sum of its proper divisors (3354977445).

1553354342203 is an equidigital number, since it uses as much as digits as its factorization.

1553354342203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354977444.

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 1553354342203 its reverse (3022434533551), we get a palindrome (4575788875754).

The spelling of 1553354342203 in words is "one trillion, five hundred fifty-three billion, three hundred fifty-four million, three hundred forty-two thousand, two hundred three".