200120142 has 16 divisors (see below), whose sum is σ = 404127360. Its totient is φ = 66058872.

The previous prime is 200120131. The next prime is 200120143. The reversal of 200120142 is 241021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161292 + ... + 162527.

It is an arithmetic number, because the mean of its divisors is an integer number (25257960).

Almost surely, 2^200120142 is an apocalyptic number.

200120142 is an abundant number, since it is smaller than the sum of its proper divisors (204007218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200120142 is a wasteful number, since it uses less digits than its factorization.

200120142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323927.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 200120142 is about 14146.3826471646. The cubic root of 200120142 is about 584.9206233159.

Adding to 200120142 its reverse (241021002), we get a palindrome (441141144).

The spelling of 200120142 in words is "two hundred million, one hundred twenty thousand, one hundred forty-two".