143216011 has 4 divisors (see below), whose sum is σ = 147086752. Its totient is φ = 139345272.

The previous prime is 143215997. The next prime is 143216057. The reversal of 143216011 is 110612341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110612341 = 7 ⋅15801763.

It is a cyclic number.

It is not a de Polignac number, because 143216011 - 2⁷ = 143215883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143216011.

It is not an unprimeable number, because it can be changed into a prime (143216111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935315 + ... + 1935388.

It is an arithmetic number, because the mean of its divisors is an integer number (36771688).

Almost surely, 2^143216011 is an apocalyptic number.

143216011 is a deficient number, since it is larger than the sum of its proper divisors (3870741).

143216011 is an equidigital number, since it uses as much as digits as its factorization.

143216011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870740.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 143216011 is about 11967.2892085050. The cubic root of 143216011 is about 523.1953286246.

Adding to 143216011 its reverse (110612341), we get a palindrome (253828352).

The spelling of 143216011 in words is "one hundred forty-three million, two hundred sixteen thousand, eleven".