201322001234 has 4 divisors (see below), whose sum is σ = 301983001854. Its totient is φ = 100661000616.

The previous prime is 201322001227. The next prime is 201322001239. The reversal of 201322001234 is 432100223102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 432100223102 = 2 ⋅216050111551.

It can be written as a sum of positive squares in only one way, i.e., 194919601009 + 6402400225 = 441497^2 + 80015^2 .

It is not an unprimeable number, because it can be changed into a prime (201322001239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50330500307 + ... + 50330500310.

Almost surely, 2^201322001234 is an apocalyptic number.

201322001234 is a deficient number, since it is larger than the sum of its proper divisors (100661000620).

201322001234 is a wasteful number, since it uses less digits than its factorization.

201322001234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100661000619.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201322001234 its reverse (432100223102), we get a palindrome (633422224336).

The spelling of 201322001234 in words is "two hundred one billion, three hundred twenty-two million, one thousand, two hundred thirty-four".