1220143143 has 8 divisors (see below), whose sum is σ = 1627077888. Its totient is φ = 813318584.

The previous prime is 1220143109. The next prime is 1220143147. The reversal of 1220143143 is 3413410221.

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 1220143143 - 2⁶ = 1220143079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220143147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3196 + ... + 49502.

It is an arithmetic number, because the mean of its divisors is an integer number (203384736).

Almost surely, 2^1220143143 is an apocalyptic number.

1220143143 is a deficient number, since it is larger than the sum of its proper divisors (406934745).

1220143143 is an equidigital number, since it uses as much as digits as its factorization.

1220143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55093.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1220143143 is about 34930.5474191287. The cubic root of 1220143143 is about 1068.5715188291.

Adding to 1220143143 its reverse (3413410221), we get a palindrome (4633553364).

The spelling of 1220143143 in words is "one billion, two hundred twenty million, one hundred forty-three thousand, one hundred forty-three".