11230120311 has 4 divisors (see below), whose sum is σ = 14973493752. Its totient is φ = 7486746872.

The previous prime is 11230120301. The next prime is 11230120331. The reversal of 11230120311 is 11302103211.

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 11230120311 - 2⁶ = 11230120247 is a prime.

It is a super-2 number, since 2×11230120311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230120301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871686716 + ... + 1871686721.

It is an arithmetic number, because the mean of its divisors is an integer number (3743373438).

Almost surely, 2^11230120311 is an apocalyptic number.

11230120311 is a deficient number, since it is larger than the sum of its proper divisors (3743373441).

11230120311 is an equidigital number, since it uses as much as digits as its factorization.

11230120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743373440.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11230120311 its reverse (11302103211), we get a palindrome (22532223522).

The spelling of 11230120311 in words is "eleven billion, two hundred thirty million, one hundred twenty thousand, three hundred eleven".