1101423143 has 4 divisors (see below), whose sum is σ = 1108717488. Its totient is φ = 1094128800.

The previous prime is 1101423133. The next prime is 1101423163. The reversal of 1101423143 is 3413241011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3413241011 = 17 ⋅200778883.

It is a cyclic number.

It is not a de Polignac number, because 1101423143 - 2⁸ = 1101422887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101423133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3646946 + ... + 3647247.

It is an arithmetic number, because the mean of its divisors is an integer number (277179372).

Almost surely, 2^1101423143 is an apocalyptic number.

1101423143 is a deficient number, since it is larger than the sum of its proper divisors (7294345).

1101423143 is an equidigital number, since it uses as much as digits as its factorization.

1101423143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294344.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1101423143 is about 33187.6956566737. The cubic root of 1101423143 is about 1032.7251000399.

Adding to 1101423143 its reverse (3413241011), we get a palindrome (4514664154).

The spelling of 1101423143 in words is "one billion, one hundred one million, four hundred twenty-three thousand, one hundred forty-three".