201323134 has 4 divisors (see below), whose sum is σ = 301984704. Its totient is φ = 100661566.

The previous prime is 201323099. The next prime is 201323147. The reversal of 201323134 is 431323102.

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, 50330782 + ... + 50330785.

It is an arithmetic number, because the mean of its divisors is an integer number (75496176).

Almost surely, 2^201323134 is an apocalyptic number.

201323134 is a deficient number, since it is larger than the sum of its proper divisors (100661570).

201323134 is a wasteful number, since it uses less digits than its factorization.

201323134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100661569.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 201323134 is about 14188.8383597813. The cubic root of 201323134 is about 586.0903365723.

Adding to 201323134 its reverse (431323102), we get a palindrome (632646236).

The spelling of 201323134 in words is "two hundred one million, three hundred twenty-three thousand, one hundred thirty-four".