142020101 has 12 divisors (see below), whose sum is σ = 150716832. Its totient is φ = 133784376.

The previous prime is 142020089. The next prime is 142020119. The reversal of 142020101 is 101020241.

It is not a de Polignac number, because 142020101 - 2⁶ = 142020037 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 (142020301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33440 + ... + 37446.

It is an arithmetic number, because the mean of its divisors is an integer number (12559736).

Almost surely, 2^142020101 is an apocalyptic number.

It is an amenable number.

142020101 is a deficient number, since it is larger than the sum of its proper divisors (8696731).

142020101 is an equidigital number, since it uses as much as digits as its factorization.

142020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4120 (or 4097 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 142020101 is about 11917.2186771914. The cubic root of 142020101 is about 521.7349606014.

Adding to 142020101 its reverse (101020241), we get a palindrome (243040342).

The spelling of 142020101 in words is "one hundred forty-two million, twenty thousand, one hundred one".