142340440111 has 4 divisors (see below), whose sum is σ = 142507311352. Its totient is φ = 142173568872.

The previous prime is 142340440103. The next prime is 142340440159. The reversal of 142340440111 is 111044043241.

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 142340440111 - 2³ = 142340440103 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 (142340440171) 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, 83434341 + ... + 83436046.

It is an arithmetic number, because the mean of its divisors is an integer number (35626827838).

Almost surely, 2^142340440111 is an apocalyptic number.

142340440111 is a deficient number, since it is larger than the sum of its proper divisors (166871241).

142340440111 is an equidigital number, since it uses as much as digits as its factorization.

142340440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166871240.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 142340440111 its reverse (111044043241), we get a palindrome (253384483352).

The spelling of 142340440111 in words is "one hundred forty-two billion, three hundred forty million, four hundred forty thousand, one hundred eleven".