142213311 has 12 divisors (see below), whose sum is σ = 210971592. Its totient is φ = 92246256.

The previous prime is 142213277. The next prime is 142213319. The reversal of 142213311 is 113312241.

142213311 is a `hidden beast` number, since 142 + 213 + 311 = 666.

It is not a de Polignac number, because 142213311 - 2¹¹ = 142211263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142213319) 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 11 ways as a sum of consecutive naturals, for example, 213201 + ... + 213866.

It is an arithmetic number, because the mean of its divisors is an integer number (17580966).

Almost surely, 2^142213311 is an apocalyptic number.

142213311 is a deficient number, since it is larger than the sum of its proper divisors (68758281).

142213311 is a wasteful number, since it uses less digits than its factorization.

142213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427110 (or 427107 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 142213311 is about 11925.3222597966. The cubic root of 142213311 is about 521.9714499733.

Adding to 142213311 its reverse (113312241), we get a palindrome (255525552).

The spelling of 142213311 in words is "one hundred forty-two million, two hundred thirteen thousand, three hundred eleven".