1251312035041 has 2 divisors, whose sum is σ = 1251312035042. Its totient is φ = 1251312035040.

The previous prime is 1251312035033. The next prime is 1251312035063. The reversal of 1251312035041 is 1405302131521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705037312225 + 546274722816 = 839665^2 + 739104^2 .

It is a cyclic number.

It is not a de Polignac number, because 1251312035041 - 2³ = 1251312035033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1251312035641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625656017520 + 625656017521.

It is an arithmetic number, because the mean of its divisors is an integer number (625656017521).

Almost surely, 2^{1251312035041} is an apocalyptic number.

It is an amenable number.

1251312035041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251312035041 is an equidigital number, since it uses as much as digits as its factorization.

1251312035041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1251312035041 its reverse (1405302131521), we get a palindrome (2656614166562).

The spelling of 1251312035041 in words is "one trillion, two hundred fifty-one billion, three hundred twelve million, thirty-five thousand, forty-one".