203211020134 has 4 divisors (see below), whose sum is σ = 304816530204. Its totient is φ = 101605510066.

The previous prime is 203211020119. The next prime is 203211020143. The reversal of 203211020134 is 431020112302.

It is a happy number.

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, 50802755032 + ... + 50802755035.

It is an arithmetic number, because the mean of its divisors is an integer number (76204132551).

Almost surely, 2^203211020134 is an apocalyptic number.

203211020134 is a deficient number, since it is larger than the sum of its proper divisors (101605510070).

203211020134 is a wasteful number, since it uses less digits than its factorization.

203211020134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101605510069.

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

Adding to 203211020134 its reverse (431020112302), we get a palindrome (634231132436).

The spelling of 203211020134 in words is "two hundred three billion, two hundred eleven million, twenty thousand, one hundred thirty-four".