3121131103 has 8 divisors (see below), whose sum is σ = 3177424800. Its totient is φ = 3065180160.

The previous prime is 3121131089. The next prime is 3121131107. The reversal of 3121131103 is 3011311213.

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

It is a cyclic number.

It is not a de Polignac number, because 3121131103 - 2¹⁷ = 3121000031 is a prime.

It is a super-2 number, since 2×3121131103² = 19482918724227993218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121131107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67278 + ... + 103771.

It is an arithmetic number, because the mean of its divisors is an integer number (397178100).

Almost surely, 2^3121131103 is an apocalyptic number.

3121131103 is a deficient number, since it is larger than the sum of its proper divisors (56293697).

3121131103 is a wasteful number, since it uses less digits than its factorization.

3121131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171377.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3121131103 is about 55867.0842536104. The cubic root of 3121131103 is about 1461.4052746942.

Adding to 3121131103 its reverse (3011311213), we get a palindrome (6132442316).

The spelling of 3121131103 in words is "three billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred three".