1201332143 has 8 divisors (see below), whose sum is σ = 1311911040. Its totient is φ = 1090981080.

The previous prime is 1201332137. The next prime is 1201332161. The reversal of 1201332143 is 3412331021.

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 1201332143 - 2¹⁶ = 1201266607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201332193) 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, 45833 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (163988880).

Almost surely, 2^1201332143 is an apocalyptic number.

1201332143 is a deficient number, since it is larger than the sum of its proper divisors (110578897).

1201332143 is a wasteful number, since it uses less digits than its factorization.

1201332143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113917.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1201332143 is about 34660.2386460336. The cubic root of 1201332143 is about 1063.0516496448.

Adding to 1201332143 its reverse (3412331021), we get a palindrome (4613663164).

The spelling of 1201332143 in words is "one billion, two hundred one million, three hundred thirty-two thousand, one hundred forty-three".