201211313099 has 4 divisors (see below), whose sum is σ = 201215044464. Its totient is φ = 201207581736.

The previous prime is 201211313003. The next prime is 201211313131. The reversal of 201211313099 is 990313112102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201211313099 - 2¹² = 201211309003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201211313899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1783592 + ... + 1893045.

It is an arithmetic number, because the mean of its divisors is an integer number (50303761116).

Almost surely, 2^201211313099 is an apocalyptic number.

201211313099 is a deficient number, since it is larger than the sum of its proper divisors (3731365).

201211313099 is an equidigital number, since it uses as much as digits as its factorization.

201211313099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731364.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 201211313099 in words is "two hundred one billion, two hundred eleven million, three hundred thirteen thousand, ninety-nine".