1211310320230 has 16 divisors (see below), whose sum is σ = 2180399459040. Its totient is φ = 484515043072.

The previous prime is 1211310320197. The next prime is 1211310320239. The reversal of 1211310320230 is 320230131121.

It is a junction number, because it is equal to n+sod(n) for n = 1211310320198 and 1211310320207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211310320239) 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 7 ways as a sum of consecutive naturals, for example, 561835 + ... + 1654774.

It is an arithmetic number, because the mean of its divisors is an integer number (136274966190).

Almost surely, 2^{1211310320230} is an apocalyptic number.

1211310320230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211310320230 is a deficient number, since it is larger than the sum of its proper divisors (969089138810).

1211310320230 is a wasteful number, since it uses less digits than its factorization.

1211310320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271263.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1211310320230 its reverse (320230131121), we get a palindrome (1531540451351).

The spelling of 1211310320230 in words is "one trillion, two hundred eleven billion, three hundred ten million, three hundred twenty thousand, two hundred thirty".