1212230311013 has 2 divisors, whose sum is σ = 1212230311014. Its totient is φ = 1212230311012.

The previous prime is 1212230311009. The next prime is 1212230311049. The reversal of 1212230311013 is 3101130322121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1209036591844 + 3193719169 = 1099562^2 + 56513^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212230311013 - 2² = 1212230311009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212230316013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606115155506 + 606115155507.

It is an arithmetic number, because the mean of its divisors is an integer number (606115155507).

Almost surely, 2^{1212230311013} is an apocalyptic number.

It is an amenable number.

1212230311013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212230311013 is an equidigital number, since it uses as much as digits as its factorization.

1212230311013 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1212230311013 its reverse (3101130322121), we get a palindrome (4313360633134).

The spelling of 1212230311013 in words is "one trillion, two hundred twelve billion, two hundred thirty million, three hundred eleven thousand, thirteen".