143211013 has 4 divisors (see below), whose sum is σ = 156230208. Its totient is φ = 130191820.

The previous prime is 143211011. The next prime is 143211049. The reversal of 143211013 is 310112341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 143211013 - 2¹ = 143211011 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 (143211011) 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, 6509581 + ... + 6509602.

It is an arithmetic number, because the mean of its divisors is an integer number (39057552).

Almost surely, 2^143211013 is an apocalyptic number.

It is an amenable number.

143211013 is a deficient number, since it is larger than the sum of its proper divisors (13019195).

143211013 is a wasteful number, since it uses less digits than its factorization.

143211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13019194.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 143211013 is about 11967.0803874629. The cubic root of 143211013 is about 523.1892423389.

Adding to 143211013 its reverse (310112341), we get a palindrome (453323354).

The spelling of 143211013 in words is "one hundred forty-three million, two hundred eleven thousand, thirteen".