202131020134 has 4 divisors (see below), whose sum is σ = 303196530204. Its totient is φ = 101065510066.

The previous prime is 202131020123. The next prime is 202131020171. The reversal of 202131020134 is 431020131202.

It is a happy number.

202131020134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50532755032 + ... + 50532755035.

It is an arithmetic number, because the mean of its divisors is an integer number (75799132551).

Almost surely, 2^202131020134 is an apocalyptic number.

202131020134 is a deficient number, since it is larger than the sum of its proper divisors (101065510070).

202131020134 is a wasteful number, since it uses less digits than its factorization.

202131020134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101065510069.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202131020134 its reverse (431020131202), we get a palindrome (633151151336).

The spelling of 202131020134 in words is "two hundred two billion, one hundred thirty-one million, twenty thousand, one hundred thirty-four".