1213030211051 has 2 divisors, whose sum is σ = 1213030211052. Its totient is φ = 1213030211050.

The previous prime is 1213030211047. The next prime is 1213030211161. The reversal of 1213030211051 is 1501120303121.

It is a weak prime.

It is an emirp because it is prime and its reverse (1501120303121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213030211051 - 2² = 1213030211047 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213030211651) 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, 606515105525 + 606515105526.

It is an arithmetic number, because the mean of its divisors is an integer number (606515105526).

Almost surely, 2^{1213030211051} is an apocalyptic number.

1213030211051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213030211051 is an equidigital number, since it uses as much as digits as its factorization.

1213030211051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 1213030211051 its reverse (1501120303121), we get a palindrome (2714150514172).

The spelling of 1213030211051 in words is "one trillion, two hundred thirteen billion, thirty million, two hundred eleven thousand, fifty-one".