201201323120 has 80 divisors (see below), whose sum is σ = 537574634688. Its totient is φ = 68602152960.

The previous prime is 201201323093. The next prime is 201201323131. The reversal of 201201323120 is 21323102102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891149 + ... + 1093868.

Almost surely, 2^201201323120 is an apocalyptic number.

201201323120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201201323120 is an abundant number, since it is smaller than the sum of its proper divisors (336373311568).

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

201201323120 is a wasteful number, since it uses less digits than its factorization.

201201323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985218 (or 1985212 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201201323120 its reverse (21323102102), we get a palindrome (222524425222).

The spelling of 201201323120 in words is "two hundred one billion, two hundred one million, three hundred twenty-three thousand, one hundred twenty".