1213425253511 has 2 divisors, whose sum is σ = 1213425253512. Its totient is φ = 1213425253510.

The previous prime is 1213425253489. The next prime is 1213425253571. The reversal of 1213425253511 is 1153525243121.

It is a weak prime.

It is an emirp because it is prime and its reverse (1153525243121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213425253511 - 2³⁰ = 1212351511687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213425253571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606712626755 + 606712626756.

It is an arithmetic number, because the mean of its divisors is an integer number (606712626756).

Almost surely, 2^{1213425253511} is an apocalyptic number.

1213425253511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213425253511 is an equidigital number, since it uses as much as digits as its factorization.

1213425253511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

The spelling of 1213425253511 in words is "one trillion, two hundred thirteen billion, four hundred twenty-five million, two hundred fifty-three thousand, five hundred eleven".