1201120143 has 8 divisors (see below), whose sum is σ = 1610751408. Its totient is φ = 796117824.

The previous prime is 1201120139. The next prime is 1201120177. The reversal of 1201120143 is 3410211021.

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

It is not a de Polignac number, because 1201120143 - 2² = 1201120139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201120103) 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, 1156630 + ... + 1157667.

It is an arithmetic number, because the mean of its divisors is an integer number (201343926).

Almost surely, 2^1201120143 is an apocalyptic number.

1201120143 is a deficient number, since it is larger than the sum of its proper divisors (409631265).

1201120143 is a wasteful number, since it uses less digits than its factorization.

1201120143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314473.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1201120143 is about 34657.1802517170. The cubic root of 1201120143 is about 1062.9891134542.

Adding to 1201120143 its reverse (3410211021), we get a palindrome (4611331164).

The spelling of 1201120143 in words is "one billion, two hundred one million, one hundred twenty thousand, one hundred forty-three".