1101023143 has 8 divisors (see below), whose sum is σ = 1230412176. Its totient is φ = 976516800.

The previous prime is 1101023123. The next prime is 1101023149. The reversal of 1101023143 is 3413201011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101023143 - 2⁵ = 1101023111 is a prime.

It is a super-2 number, since 2×1101023143² = 2424503922843196898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101023149) 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 7 ways as a sum of consecutive naturals, for example, 1220196 + ... + 1221097.

It is an arithmetic number, because the mean of its divisors is an integer number (153801522).

Almost surely, 2^1101023143 is an apocalyptic number.

1101023143 is a deficient number, since it is larger than the sum of its proper divisors (129389033).

1101023143 is a wasteful number, since it uses less digits than its factorization.

1101023143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441345.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1101023143 is about 33181.6687796138. The cubic root of 1101023143 is about 1032.6000678457.

Adding to 1101023143 its reverse (3413201011), we get a palindrome (4514224154).

The spelling of 1101023143 in words is "one billion, one hundred one million, twenty-three thousand, one hundred forty-three".