1212232310131 has 2 divisors, whose sum is σ = 1212232310132. Its totient is φ = 1212232310130.

The previous prime is 1212232310129. The next prime is 1212232310153. The reversal of 1212232310131 is 1310132322121.

It is an a-pointer prime, because the next prime (1212232310153) can be obtained adding 1212232310131 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212232310131 - 2¹ = 1212232310129 is a prime.

It is a super-2 number, since 2×1212232310131² (a number of 25 digits) contains 22 as substring.

Together with 1212232310129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1212232310171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606116155065 + 606116155066.

It is an arithmetic number, because the mean of its divisors is an integer number (606116155066).

Almost surely, 2^{1212232310131} is an apocalyptic number.

1212232310131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212232310131 is an equidigital number, since it uses as much as digits as its factorization.

1212232310131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1212232310131 its reverse (1310132322121), we get a palindrome (2522364632252).

The spelling of 1212232310131 in words is "one trillion, two hundred twelve billion, two hundred thirty-two million, three hundred ten thousand, one hundred thirty-one".