1121120143 has 12 divisors (see below), whose sum is σ = 1324359288. Its totient is φ = 940798560.

The previous prime is 1121120141. The next prime is 1121120153. The reversal of 1121120143 is 3410211211.

It is not a de Polignac number, because 1121120143 - 2¹ = 1121120141 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 (1121120141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299680 + ... + 303397.

It is an arithmetic number, because the mean of its divisors is an integer number (110363274).

Almost surely, 2^1121120143 is an apocalyptic number.

1121120143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1121120143 is a deficient number, since it is larger than the sum of its proper divisors (203239145).

1121120143 is a wasteful number, since it uses less digits than its factorization.

1121120143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603114 (or 603101 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1121120143 is about 33483.1322160876. The cubic root of 1121120143 is about 1038.8449154876.

Adding to 1121120143 its reverse (3410211211), we get a palindrome (4531331354).

The spelling of 1121120143 in words is "one billion, one hundred twenty-one million, one hundred twenty thousand, one hundred forty-three".