202134430061 has 4 divisors (see below), whose sum is σ = 204023536992. Its totient is φ = 200245323132.

The previous prime is 202134430021. The next prime is 202134430151. The reversal of 202134430061 is 160034431202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160034431202 = 2 ⋅80017215601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202134430061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202134430061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202134430021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944553305 + ... + 944553518.

It is an arithmetic number, because the mean of its divisors is an integer number (51005884248).

Almost surely, 2^202134430061 is an apocalyptic number.

It is an amenable number.

202134430061 is a deficient number, since it is larger than the sum of its proper divisors (1889106931).

202134430061 is a wasteful number, since it uses less digits than its factorization.

202134430061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889106930.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 202134430061 its reverse (160034431202), we get a palindrome (362168861263).

The spelling of 202134430061 in words is "two hundred two billion, one hundred thirty-four million, four hundred thirty thousand, sixty-one".