143021011 has 16 divisors (see below), whose sum is σ = 174551040. Its totient is φ = 114539040.

The previous prime is 143020993. The next prime is 143021023. The reversal of 143021011 is 110120341.

It is not a de Polignac number, because 143021011 - 2¹⁹ = 142496723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143020982 and 143021000.

It is not an unprimeable number, because it can be changed into a prime (143021071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5071 + ... + 17656.

It is an arithmetic number, because the mean of its divisors is an integer number (10909440).

Almost surely, 2^143021011 is an apocalyptic number.

143021011 is a deficient number, since it is larger than the sum of its proper divisors (31530029).

143021011 is a wasteful number, since it uses less digits than its factorization.

143021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22794.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 143021011 is about 11959.1392248773. The cubic root of 143021011 is about 522.9577634073.

Adding to 143021011 its reverse (110120341), we get a palindrome (253141352).

The spelling of 143021011 in words is "one hundred forty-three million, twenty-one thousand, eleven".