142020404111 has 2 divisors, whose sum is σ = 142020404112. Its totient is φ = 142020404110.

The previous prime is 142020404101. The next prime is 142020404221. The reversal of 142020404111 is 111404020241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142020404111 - 2¹⁰ = 142020403087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142020404101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71010202055 + 71010202056.

It is an arithmetic number, because the mean of its divisors is an integer number (71010202056).

Almost surely, 2^142020404111 is an apocalyptic number.

142020404111 is a deficient number, since it is larger than the sum of its proper divisors (1).

142020404111 is an equidigital number, since it uses as much as digits as its factorization.

142020404111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 142020404111 its reverse (111404020241), we get a palindrome (253424424352).

The spelling of 142020404111 in words is "one hundred forty-two billion, twenty million, four hundred four thousand, one hundred eleven".