1503131103 has 12 divisors (see below), whose sum is σ = 2246058360. Its totient is φ = 967532496.

The previous prime is 1503131093. The next prime is 1503131117. The reversal of 1503131103 is 3011313051.

It is not a de Polignac number, because 1503131103 - 2¹² = 1503127007 is a prime.

It is a super-3 number, since 3×1503131103³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1503131153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2879301 + ... + 2879822.

It is an arithmetic number, because the mean of its divisors is an integer number (187171530).

Almost surely, 2^1503131103 is an apocalyptic number.

1503131103 is a deficient number, since it is larger than the sum of its proper divisors (742927257).

1503131103 is a wasteful number, since it uses less digits than its factorization.

1503131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759158 (or 5759155 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 1503131103 is about 38770.2347555441. The cubic root of 1503131103 is about 1145.5101819279.

Adding to 1503131103 its reverse (3011313051), we get a palindrome (4514444154).

It can be divided in two parts, 150 and 3131103, that added together give a triangular number (3131253 = T₂₅₀₂).

The spelling of 1503131103 in words is "one billion, five hundred three million, one hundred thirty-one thousand, one hundred three".