1303031213103 has 4 divisors (see below), whose sum is σ = 1737374950808. Its totient is φ = 868687475400.

The previous prime is 1303031213093. The next prime is 1303031213117. The reversal of 1303031213103 is 3013121303031.

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

It is not a de Polignac number, because 1303031213103 - 2¹⁸ = 1303030950959 is a prime.

It is a super-3 number, since 3×1303031213103³ (a number of 37 digits) contains 333 as substring.

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 1303031213103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303031213153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217171868848 + ... + 217171868853.

It is an arithmetic number, because the mean of its divisors is an integer number (434343737702).

Almost surely, 2^{1303031213103} is an apocalyptic number.

1303031213103 is a deficient number, since it is larger than the sum of its proper divisors (434343737705).

1303031213103 is an equidigital number, since it uses as much as digits as its factorization.

1303031213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434343737704.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1303031213103 its reverse (3013121303031), we get a palindrome (4316152516134).

The spelling of 1303031213103 in words is "one trillion, three hundred three billion, thirty-one million, two hundred thirteen thousand, one hundred three".