1230223011311 has 16 divisors (see below), whose sum is σ = 1411134566400. Its totient is φ = 1050605911680.

The previous prime is 1230223011307. The next prime is 1230223011331. The reversal of 1230223011311 is 1131103220321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1230223011311 - 2² = 1230223011307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230223011331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4676615 + ... + 4932663.

It is an arithmetic number, because the mean of its divisors is an integer number (88195910400).

Almost surely, 2^{1230223011311} is an apocalyptic number.

1230223011311 is a deficient number, since it is larger than the sum of its proper divisors (180911555089).

1230223011311 is a wasteful number, since it uses less digits than its factorization.

1230223011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258574.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1230223011311 its reverse (1131103220321), we get a palindrome (2361326231632).

The spelling of 1230223011311 in words is "one trillion, two hundred thirty billion, two hundred twenty-three million, eleven thousand, three hundred eleven".