201232311193 has 8 divisors (see below), whose sum is σ = 202144934600. Its totient is φ = 200319982848.

The previous prime is 201232311131. The next prime is 201232311197. The reversal of 201232311193 is 391113232102.

It can be written as a sum of positive squares in 4 ways, for example, as 53089689744 + 148142621449 = 230412^2 + 384893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201232311193 - 2¹³ = 201232303001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201232311197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355905 + ... + 1496977.

It is an arithmetic number, because the mean of its divisors is an integer number (25268116825).

Almost surely, 2^201232311193 is an apocalyptic number.

It is an amenable number.

201232311193 is a deficient number, since it is larger than the sum of its proper divisors (912623407).

201232311193 is a wasteful number, since it uses less digits than its factorization.

201232311193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147531.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 201232311193 its reverse (391113232102), we get a palindrome (592345543295).

The spelling of 201232311193 in words is "two hundred one billion, two hundred thirty-two million, three hundred eleven thousand, one hundred ninety-three".