1211133230101 has 2 divisors, whose sum is σ = 1211133230102. Its totient is φ = 1211133230100.

The previous prime is 1211133230089. The next prime is 1211133230107. The reversal of 1211133230101 is 1010323311121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1166888211076 + 44245019025 = 1080226^2 + 210345^2 .

It is an emirp because it is prime and its reverse (1010323311121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1211133230101 - 2⁷ = 1211133229973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211133230107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605566615050 + 605566615051.

It is an arithmetic number, because the mean of its divisors is an integer number (605566615051).

Almost surely, 2^{1211133230101} is an apocalyptic number.

It is an amenable number.

1211133230101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211133230101 is an equidigital number, since it uses as much as digits as its factorization.

1211133230101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1211133230101 its reverse (1010323311121), we get a palindrome (2221456541222).

The spelling of 1211133230101 in words is "one trillion, two hundred eleven billion, one hundred thirty-three million, two hundred thirty thousand, one hundred one".