1212301323011 has 2 divisors, whose sum is σ = 1212301323012. Its totient is φ = 1212301323010.

The previous prime is 1212301323007. The next prime is 1212301323031. The reversal of 1212301323011 is 1103231032121.

It is a happy number.

It is an a-pointer prime, because the next prime (1212301323031) can be obtained adding 1212301323011 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212301323011 - 2² = 1212301323007 is a prime.

It is a super-2 number, since 2×1212301323011² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212301323031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606150661505 + 606150661506.

It is an arithmetic number, because the mean of its divisors is an integer number (606150661506).

Almost surely, 2^{1212301323011} is an apocalyptic number.

1212301323011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212301323011 is an equidigital number, since it uses as much as digits as its factorization.

1212301323011 is an evil number, because the sum of its binary digits is even.

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

Adding to 1212301323011 its reverse (1103231032121), we get a palindrome (2315532355132).

The spelling of 1212301323011 in words is "one trillion, two hundred twelve billion, three hundred one million, three hundred twenty-three thousand, eleven".