1101211230311 has 4 divisors (see below), whose sum is σ = 1101270719112. Its totient is φ = 1101151741512.

The previous prime is 1101211230293. The next prime is 1101211230341. The reversal of 1101211230311 is 1130321121011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101211230311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101211230311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101211230341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29716625 + ... + 29753658.

It is an arithmetic number, because the mean of its divisors is an integer number (275317679778).

Almost surely, 2^{1101211230311} is an apocalyptic number.

1101211230311 is a deficient number, since it is larger than the sum of its proper divisors (59488801).

1101211230311 is an equidigital number, since it uses as much as digits as its factorization.

1101211230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59488800.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1101211230311 its reverse (1130321121011), we get a palindrome (2231532351322).

The spelling of 1101211230311 in words is "one trillion, one hundred one billion, two hundred eleven million, two hundred thirty thousand, three hundred eleven".