142400450111 has 2 divisors, whose sum is σ = 142400450112. Its totient is φ = 142400450110.

The previous prime is 142400450099. The next prime is 142400450113. The reversal of 142400450111 is 111054004241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142400450111 - 2⁶ = 142400450047 is a prime.

Together with 142400450113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142400450113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200225055 + 71200225056.

It is an arithmetic number, because the mean of its divisors is an integer number (71200225056).

Almost surely, 2^142400450111 is an apocalyptic number.

142400450111 is a deficient number, since it is larger than the sum of its proper divisors (1).

142400450111 is an equidigital number, since it uses as much as digits as its factorization.

142400450111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 142400450111 its reverse (111054004241), we get a palindrome (253454454352).

The spelling of 142400450111 in words is "one hundred forty-two billion, four hundred million, four hundred fifty thousand, one hundred eleven".