1553022203243 has 96 divisors (see below), whose sum is σ = 1998969840000. Its totient is φ = 1179603855360.

The previous prime is 1553022203221. The next prime is 1553022203263. The reversal of 1553022203243 is 3423022203551.

It is not a de Polignac number, because 1553022203243 - 2⁸ = 1553022202987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1553022203263) 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 95 ways as a sum of consecutive naturals, for example, 447684113 + ... + 447687581.

It is an arithmetic number, because the mean of its divisors is an integer number (20822602500).

Almost surely, 2^{1553022203243} is an apocalyptic number.

1553022203243 is a deficient number, since it is larger than the sum of its proper divisors (445947636757).

1553022203243 is a wasteful number, since it uses less digits than its factorization.

1553022203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733 (or 3714 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 1553022203243 its reverse (3423022203551), we get a palindrome (4976044406794).

The spelling of 1553022203243 in words is "one trillion, five hundred fifty-three billion, twenty-two million, two hundred three thousand, two hundred forty-three".