3121300103 has 4 divisors (see below), whose sum is σ = 3150471240. Its totient is φ = 3092128968.

The previous prime is 3121300099. The next prime is 3121300157. The reversal of 3121300103 is 3010031213.

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 3121300103 - 2² = 3121300099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121300703) 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, 14585408 + ... + 14585621.

It is an arithmetic number, because the mean of its divisors is an integer number (787617810).

Almost surely, 2^3121300103 is an apocalyptic number.

3121300103 is a deficient number, since it is larger than the sum of its proper divisors (29171137).

3121300103 is a wasteful number, since it uses less digits than its factorization.

3121300103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29171136.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 3121300103 is about 55868.5967516636. The cubic root of 3121300103 is about 1461.4316511397.

Adding to 3121300103 its reverse (3010031213), we get a palindrome (6131331316).

The spelling of 3121300103 in words is "three billion, one hundred twenty-one million, three hundred thousand, one hundred three".