13121303031 has 6 divisors (see below), whose sum is σ = 18952993280. Its totient is φ = 8747535348.

The previous prime is 13121303017. The next prime is 13121303033. The reversal of 13121303031 is 13030312131.

It is a happy number.

It is not a de Polignac number, because 13121303031 - 2¹⁵ = 13121270263 is a prime.

It is a super-2 number, since 2×13121303031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121302995 and 13121303013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121303033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728961271 + ... + 728961288.

Almost surely, 2^13121303031 is an apocalyptic number.

13121303031 is a deficient number, since it is larger than the sum of its proper divisors (5831690249).

13121303031 is a wasteful number, since it uses less digits than its factorization.

13121303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457922565 (or 1457922562 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13121303031 its reverse (13030312131), we get a palindrome (26151615162).

The spelling of 13121303031 in words is "thirteen billion, one hundred twenty-one million, three hundred three thousand, thirty-one".