1230303122311 has 4 divisors (see below), whose sum is σ = 1230307409800. Its totient is φ = 1230298834824.

The previous prime is 1230303122299. The next prime is 1230303122329. The reversal of 1230303122311 is 1132213030321.

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 1230303122311 - 2¹³ = 1230303114119 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 (1230303122611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679856 + ... + 2298373.

It is an arithmetic number, because the mean of its divisors is an integer number (307576852450).

Almost surely, 2^{1230303122311} is an apocalyptic number.

1230303122311 is a deficient number, since it is larger than the sum of its proper divisors (4287489).

1230303122311 is an equidigital number, since it uses as much as digits as its factorization.

1230303122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287488.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1230303122311 its reverse (1132213030321), we get a palindrome (2362516152632).

The spelling of 1230303122311 in words is "one trillion, two hundred thirty billion, three hundred three million, one hundred twenty-two thousand, three hundred eleven".