1345203201251 has 16 divisors (see below), whose sum is σ = 1655668158144. Its totient is φ = 1064315096064.

The previous prime is 1345203201247. The next prime is 1345203201269. The reversal of 1345203201251 is 1521023025431.

It is a cyclic number.

It is not a de Polignac number, because 1345203201251 - 2² = 1345203201247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345203281251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5581595 + ... + 5817611.

It is an arithmetic number, because the mean of its divisors is an integer number (103479259884).

Almost surely, 2^{1345203201251} is an apocalyptic number.

1345203201251 is a deficient number, since it is larger than the sum of its proper divisors (310464956893).

1345203201251 is a wasteful number, since it uses less digits than its factorization.

1345203201251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298670.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1345203201251 its reverse (1521023025431), we get a palindrome (2866226226682).

The spelling of 1345203201251 in words is "one trillion, three hundred forty-five billion, two hundred three million, two hundred one thousand, two hundred fifty-one".