1120420143 has 6 divisors (see below), whose sum is σ = 1618384664. Its totient is φ = 746946756.

The previous prime is 1120420087. The next prime is 1120420187. The reversal of 1120420143 is 3410240211.

It is not a de Polignac number, because 1120420143 - 2¹⁴ = 1120403759 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 (1120420043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62245555 + ... + 62245572.

Almost surely, 2^1120420143 is an apocalyptic number.

1120420143 is a deficient number, since it is larger than the sum of its proper divisors (497964521).

1120420143 is a wasteful number, since it uses less digits than its factorization.

1120420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124491133 (or 124491130 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1120420143 is about 33472.6775594663. The cubic root of 1120420143 is about 1038.6286606866.

Adding to 1120420143 its reverse (3410240211), we get a palindrome (4530660354).

The spelling of 1120420143 in words is "one billion, one hundred twenty million, four hundred twenty thousand, one hundred forty-three".