1260442621351 has 2 divisors, whose sum is σ = 1260442621352. Its totient is φ = 1260442621350.

The previous prime is 1260442621331. The next prime is 1260442621379. The reversal of 1260442621351 is 1531262440621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1260442621351 is a prime.

It is a super-2 number, since 2×1260442621351² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1260442621351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260442621301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630221310675 + 630221310676.

It is an arithmetic number, because the mean of its divisors is an integer number (630221310676).

Almost surely, 2^{1260442621351} is an apocalyptic number.

1260442621351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260442621351 is an equidigital number, since it uses as much as digits as its factorization.

1260442621351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 1260442621351 in words is "one trillion, two hundred sixty billion, four hundred forty-two million, six hundred twenty-one thousand, three hundred fifty-one".