1202312003257 has 2 divisors, whose sum is σ = 1202312003258. Its totient is φ = 1202312003256.

The previous prime is 1202312003219. The next prime is 1202312003317. The reversal of 1202312003257 is 7523002132021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 873198671401 + 329113331856 = 934451^2 + 573684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202312003257 - 2²³ = 1202303614649 is a prime.

It is a super-3 number, since 3×1202312003257³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1202312000257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601156001628 + 601156001629.

It is an arithmetic number, because the mean of its divisors is an integer number (601156001629).

Almost surely, 2^{1202312003257} is an apocalyptic number.

It is an amenable number.

1202312003257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202312003257 is an equidigital number, since it uses as much as digits as its factorization.

1202312003257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 1202312003257 its reverse (7523002132021), we get a palindrome (8725314135278).

The spelling of 1202312003257 in words is "one trillion, two hundred two billion, three hundred twelve million, three thousand, two hundred fifty-seven".