2125413120251 has 2 divisors, whose sum is σ = 2125413120252. Its totient is φ = 2125413120250.

The previous prime is 2125413120241. The next prime is 2125413120287. The reversal of 2125413120251 is 1520213145212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2125413120251 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125413120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062706560125 + 1062706560126.

It is an arithmetic number, because the mean of its divisors is an integer number (1062706560126).

Almost surely, 2^{2125413120251} is an apocalyptic number.

2125413120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125413120251 is an equidigital number, since it uses as much as digits as its factorization.

2125413120251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 2125413120251 its reverse (1520213145212), we get a palindrome (3645626265463).

The spelling of 2125413120251 in words is "two trillion, one hundred twenty-five billion, four hundred thirteen million, one hundred twenty thousand, two hundred fifty-one".