201201311232 has 160 divisors (see below), whose sum is σ = 600121589760. Its totient is φ = 66554542080.

The previous prime is 201201311209. The next prime is 201201311263. The reversal of 201201311232 is 232113102102.

201201311232 is a `hidden beast` number, since 2 + 0 + 120 + 1 + 311 + 232 = 666.

It is a super-2 number, since 2×201201311232² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1755393 + ... + 1866495.

It is an arithmetic number, because the mean of its divisors is an integer number (3750759936).

Almost surely, 2^201201311232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201201311232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300060794880).

201201311232 is an abundant number, since it is smaller than the sum of its proper divisors (398920278528).

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

201201311232 is a wasteful number, since it uses less digits than its factorization.

201201311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111261 (or 111239 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201201311232 its reverse (232113102102), we get a palindrome (433314413334).

The spelling of 201201311232 in words is "two hundred one billion, two hundred one million, three hundred eleven thousand, two hundred thirty-two".