1030040031205 has 4 divisors (see below), whose sum is σ = 1236048037452. Its totient is φ = 824032024960.

The previous prime is 1030040031197. The next prime is 1030040031271. The reversal of 1030040031205 is 5021300400301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 145144236484 + 884895794721 = 380978^2 + 940689^2 .

It is not a de Polignac number, because 1030040031205 - 2³ = 1030040031197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103004003116 + ... + 103004003125.

It is an arithmetic number, because the mean of its divisors is an integer number (309012009363).

Almost surely, 2^{1030040031205} is an apocalyptic number.

It is an amenable number.

1030040031205 is a deficient number, since it is larger than the sum of its proper divisors (206008006247).

1030040031205 is an equidigital number, since it uses as much as digits as its factorization.

1030040031205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206008006246.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 1030040031205 its reverse (5021300400301), we get a palindrome (6051340431506).

The spelling of 1030040031205 in words is "one trillion, thirty billion, forty million, thirty-one thousand, two hundred five".