202131020142 has 48 divisors (see below), whose sum is σ = 438568200720. Its totient is φ = 67282068096.

The previous prime is 202131020123. The next prime is 202131020171. The reversal of 202131020142 is 241020131202.

It is a happy number.

202131020142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56255098 + ... + 56258690.

It is an arithmetic number, because the mean of its divisors is an integer number (9136837515).

Almost surely, 2^202131020142 is an apocalyptic number.

202131020142 is an abundant number, since it is smaller than the sum of its proper divisors (236437180578).

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

202131020142 is a wasteful number, since it uses less digits than its factorization.

202131020142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137 (or 7134 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 202131020142 its reverse (241020131202), we get a palindrome (443151151344).

The spelling of 202131020142 in words is "two hundred two billion, one hundred thirty-one million, twenty thousand, one hundred forty-two".