142433311 has 4 divisors (see below), whose sum is σ = 142468632. Its totient is φ = 142397992.

The previous prime is 142433309. The next prime is 142433321. The reversal of 142433311 is 113334241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142433311 - 2¹ = 142433309 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 (142433321) 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, 10696 + ... + 19981.

It is an arithmetic number, because the mean of its divisors is an integer number (35617158).

Almost surely, 2^142433311 is an apocalyptic number.

142433311 is a deficient number, since it is larger than the sum of its proper divisors (35321).

142433311 is an equidigital number, since it uses as much as digits as its factorization.

142433311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35320.

The product of its digits is 864, while the sum is 22.

The square root of 142433311 is about 11934.5427645972. The cubic root of 142433311 is about 522.2404696925.

Adding to 142433311 its reverse (113334241), we get a palindrome (255767552).

The spelling of 142433311 in words is "one hundred forty-two million, four hundred thirty-three thousand, three hundred eleven".