1603031610013 has 8 divisors (see below), whose sum is σ = 1646392515768. Its totient is φ = 1559672584704.

The previous prime is 1603031609953. The next prime is 1603031610043. The reversal of 1603031610013 is 3100161303061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 145414856889 + 1457616753124 = 381333^2 + 1207318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1603031610013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1603031610013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603031610043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352145 + ... + 2243737.

It is an arithmetic number, because the mean of its divisors is an integer number (205799064471).

Almost surely, 2^{1603031610013} is an apocalyptic number.

It is an amenable number.

1603031610013 is a deficient number, since it is larger than the sum of its proper divisors (43360905755).

1603031610013 is an equidigital number, since it uses as much as digits as its factorization.

1603031610013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940223.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 1603031610013 its reverse (3100161303061), we get a palindrome (4703192913074).

The spelling of 1603031610013 in words is "one trillion, six hundred three billion, thirty-one million, six hundred ten thousand, thirteen".