1212232310129 has 2 divisors, whose sum is σ = 1212232310130. Its totient is φ = 1212232310128.

The previous prime is 1212232310071. The next prime is 1212232310131. The reversal of 1212232310129 is 9210132322121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667554361600 + 544677948529 = 817040^2 + 738023^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212232310129 - 2⁴⁰ = 112720682353 is a prime.

Together with 1212232310131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1212232300129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606116155064 + 606116155065.

It is an arithmetic number, because the mean of its divisors is an integer number (606116155065).

Almost surely, 2^{1212232310129} is an apocalyptic number.

It is an amenable number.

1212232310129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212232310129 is an equidigital number, since it uses as much as digits as its factorization.

1212232310129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1212232310129 in words is "one trillion, two hundred twelve billion, two hundred thirty-two million, three hundred ten thousand, one hundred twenty-nine".