1255403340106 has 4 divisors (see below), whose sum is σ = 1883105010162. Its totient is φ = 627701670052.

The previous prime is 1255403340097. The next prime is 1255403340223. The reversal of 1255403340106 is 6010433045521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 711483815025 + 543919525081 = 843495^2 + 737509^2 .

It is a super-2 number, since 2×1255403340106² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313850835025 + ... + 313850835028.

Almost surely, 2^{1255403340106} is an apocalyptic number.

1255403340106 is a deficient number, since it is larger than the sum of its proper divisors (627701670056).

1255403340106 is an equidigital number, since it uses as much as digits as its factorization.

1255403340106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627701670055.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 1255403340106 its reverse (6010433045521), we get a palindrome (7265836385627).

The spelling of 1255403340106 in words is "one trillion, two hundred fifty-five billion, four hundred three million, three hundred forty thousand, one hundred six".