1230212131 has 2 divisors, whose sum is σ = 1230212132. Its totient is φ = 1230212130.

The previous prime is 1230212107. The next prime is 1230212141. The reversal of 1230212131 is 1312120321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230212131 - 2¹³ = 1230203939 is a prime.

It is a super-2 number, since 2×1230212131² = 3026843774519122322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615106065 + 615106066.

It is an arithmetic number, because the mean of its divisors is an integer number (615106066).

Almost surely, 2^1230212131 is an apocalyptic number.

1230212131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230212131 is an equidigital number, since it uses as much as digits as its factorization.

1230212131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1230212131 is about 35074.3799802648. The cubic root of 1230212131 is about 1071.5028612471.

Adding to 1230212131 its reverse (1312120321), we get a palindrome (2542332452).

The spelling of 1230212131 in words is "one billion, two hundred thirty million, two hundred twelve thousand, one hundred thirty-one".