12121003031 has 8 divisors (see below), whose sum is σ = 12423721584. Its totient is φ = 11821867200.

The previous prime is 12121002997. The next prime is 12121003039. The reversal of 12121003031 is 13030012121.

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 12121003031 - 2¹⁰ = 12121002007 is a prime.

It is a super-2 number, since 2×12121003031² (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 = 12121002997 and 12121003015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121003039) 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 7 ways as a sum of consecutive naturals, for example, 888830 + ... + 902363.

It is an arithmetic number, because the mean of its divisors is an integer number (1552965198).

Almost surely, 2^12121003031 is an apocalyptic number.

12121003031 is a deficient number, since it is larger than the sum of its proper divisors (302718553).

12121003031 is a wasteful number, since it uses less digits than its factorization.

12121003031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791361.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12121003031 its reverse (13030012121), we get a palindrome (25151015152).

The spelling of 12121003031 in words is "twelve billion, one hundred twenty-one million, three thousand, thirty-one".