1255105030603 has 4 divisors (see below), whose sum is σ = 1255108502088. Its totient is φ = 1255101559120.

The previous prime is 1255105030567. The next prime is 1255105030609. The reversal of 1255105030603 is 3060305015521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255105030603 - 2¹³ = 1255105022411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255105030609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120801 + ... + 1940722.

It is an arithmetic number, because the mean of its divisors is an integer number (313777125522).

Almost surely, 2^{1255105030603} is an apocalyptic number.

1255105030603 is a deficient number, since it is larger than the sum of its proper divisors (3471485).

1255105030603 is an equidigital number, since it uses as much as digits as its factorization.

1255105030603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471484.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 1255105030603 in words is "one trillion, two hundred fifty-five billion, one hundred five million, thirty thousand, six hundred three".