142328111 has 4 divisors (see below), whose sum is σ = 142388952. Its totient is φ = 142267272.

The previous prime is 142328101. The next prime is 142328113. The reversal of 142328111 is 111823241.

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 142328111 - 2⁶ = 142328047 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 (142328113) 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, 26765 + ... + 31638.

It is an arithmetic number, because the mean of its divisors is an integer number (35597238).

Almost surely, 2^142328111 is an apocalyptic number.

142328111 is a deficient number, since it is larger than the sum of its proper divisors (60841).

142328111 is an equidigital number, since it uses as much as digits as its factorization.

142328111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60840.

The product of its digits is 384, while the sum is 23.

The square root of 142328111 is about 11930.1345759384. The cubic root of 142328111 is about 522.1118639411. Note that the first 3 decimals are identical.

The spelling of 142328111 in words is "one hundred forty-two million, three hundred twenty-eight thousand, one hundred eleven".