201211313013 has 36 divisors (see below), whose sum is σ = 309313467268. Its totient is φ = 126015989760.

The previous prime is 201211313003. The next prime is 201211313131. The reversal of 201211313013 is 310313112102.

It can be written as a sum of positive squares in 6 ways, for example, as 31131779364 + 170079533649 = 176442^2 + 412407^2 .

It is not a de Polignac number, because 201211313013 - 2¹⁸ = 201211050869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211313003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1335645 + ... + 1478637.

Almost surely, 2^201211313013 is an apocalyptic number.

It is an amenable number.

201211313013 is a deficient number, since it is larger than the sum of its proper divisors (108102154255).

201211313013 is a wasteful number, since it uses less digits than its factorization.

201211313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143574 (or 143554 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 201211313013 its reverse (310313112102), we get a palindrome (511524425115).

The spelling of 201211313013 in words is "two hundred one billion, two hundred eleven million, three hundred thirteen thousand, thirteen".