1550411331243 has 16 divisors (see below), whose sum is σ = 2078878481280. Its totient is φ = 1027776505536.

The previous prime is 1550411331193. The next prime is 1550411331257. The reversal of 1550411331243 is 3421331140551.

It is not a de Polignac number, because 1550411331243 - 2⁶ = 1550411331179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1550411331043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11130996 + ... + 11269422.

It is an arithmetic number, because the mean of its divisors is an integer number (129929905080).

Almost surely, 2^{1550411331243} is an apocalyptic number.

1550411331243 is a deficient number, since it is larger than the sum of its proper divisors (528467150037).

1550411331243 is a wasteful number, since it uses less digits than its factorization.

1550411331243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159466.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 1550411331243 its reverse (3421331140551), we get a palindrome (4971742471794).

The spelling of 1550411331243 in words is "one trillion, five hundred fifty billion, four hundred eleven million, three hundred thirty-one thousand, two hundred forty-three".