142120420210 has 32 divisors (see below), whose sum is σ = 258315084720. Its totient is φ = 56295017472.

The previous prime is 142120420207. The next prime is 142120420231. The reversal of 142120420210 is 12024021241.

It can be written as a sum of positive squares in 8 ways, for example, as 101391933241 + 40728486969 = 318421^2 + 201813^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433512 + ... + 687148.

Almost surely, 2^142120420210 is an apocalyptic number.

142120420210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142120420210 is a deficient number, since it is larger than the sum of its proper divisors (116194664510).

142120420210 is a wasteful number, since it uses less digits than its factorization.

142120420210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254190.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 142120420210 its reverse (12024021241), we get a palindrome (154144441451).

It can be divided in two parts, 142120 and 420210, that added together give a triangular number (562330 = T₁₀₆₀).

The spelling of 142120420210 in words is "one hundred forty-two billion, one hundred twenty million, four hundred twenty thousand, two hundred ten".