1212133132123 has 2 divisors, whose sum is σ = 1212133132124. Its totient is φ = 1212133132122.

The previous prime is 1212133132109. The next prime is 1212133132139. The reversal of 1212133132123 is 3212313312121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212133132123 - 2⁹ = 1212133131611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212133132153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606066566061 + 606066566062.

It is an arithmetic number, because the mean of its divisors is an integer number (606066566062).

Almost surely, 2^{1212133132123} is an apocalyptic number.

1212133132123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212133132123 is an equidigital number, since it uses as much as digits as its factorization.

1212133132123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

Adding to 1212133132123 its reverse (3212313312121), we get a palindrome (4424446444244).

The spelling of 1212133132123 in words is "one trillion, two hundred twelve billion, one hundred thirty-three million, one hundred thirty-two thousand, one hundred twenty-three".