202120432134 has 32 divisors (see below), whose sum is σ = 415239042816. Its totient is φ = 65541085920.

The previous prime is 202120432133. The next prime is 202120432141. The reversal of 202120432134 is 431234021202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120432133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1238989 + ... + 1392599.

It is an arithmetic number, because the mean of its divisors is an integer number (12976220088).

Almost surely, 2^202120432134 is an apocalyptic number.

202120432134 is an abundant number, since it is smaller than the sum of its proper divisors (213118610682).

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

202120432134 is a wasteful number, since it uses less digits than its factorization.

202120432134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159580.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 202120432134 its reverse (431234021202), we get a palindrome (633354453336).

The spelling of 202120432134 in words is "two hundred two billion, one hundred twenty million, four hundred thirty-two thousand, one hundred thirty-four".