1311101002201 has 4 divisors (see below), whose sum is σ = 1311603534900. Its totient is φ = 1310598469504.

The previous prime is 1311101002199. The next prime is 1311101002217. The reversal of 1311101002201 is 1022001011131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 216355219600 + 1094745782601 = 465140^2 + 1046301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311101002201 - 2¹ = 1311101002199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311101002291) 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, 251262436 + ... + 251267653.

It is an arithmetic number, because the mean of its divisors is an integer number (327900883725).

Almost surely, 2^{1311101002201} is an apocalyptic number.

It is an amenable number.

1311101002201 is a deficient number, since it is larger than the sum of its proper divisors (502532699).

1311101002201 is an equidigital number, since it uses as much as digits as its factorization.

1311101002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502532698.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1311101002201 its reverse (1022001011131), we get a palindrome (2333102013332).

It can be divided in two parts, 131110 and 1002201, that added together give a palindrome (1133311).

The spelling of 1311101002201 in words is "one trillion, three hundred eleven billion, one hundred one million, two thousand, two hundred one".