2126551113251 has 2 divisors, whose sum is σ = 2126551113252. Its totient is φ = 2126551113250.

The previous prime is 2126551113209. The next prime is 2126551113259. The reversal of 2126551113251 is 1523111556212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2126551113251 - 2¹⁰ = 2126551112227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2126551113259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063275556625 + 1063275556626.

It is an arithmetic number, because the mean of its divisors is an integer number (1063275556626).

Almost surely, 2^{2126551113251} is an apocalyptic number.

2126551113251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126551113251 is an equidigital number, since it uses as much as digits as its factorization.

2126551113251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 35.

Adding to 2126551113251 its reverse (1523111556212), we get a palindrome (3649662669463).

The spelling of 2126551113251 in words is "two trillion, one hundred twenty-six billion, five hundred fifty-one million, one hundred thirteen thousand, two hundred fifty-one".