12303121031 has 4 divisors (see below), whose sum is σ = 12422568912. Its totient is φ = 12183673152.

The previous prime is 12303120989. The next prime is 12303121057. The reversal of 12303121031 is 13012130321.

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 12303121031 - 2⁶ = 12303120967 is a prime.

It is a super-2 number, since 2×12303121031² (a number of 21 digits) 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 (12303121331) 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 3 ways as a sum of consecutive naturals, for example, 59723786 + ... + 59723991.

It is an arithmetic number, because the mean of its divisors is an integer number (3105642228).

Almost surely, 2^12303121031 is an apocalyptic number.

12303121031 is a deficient number, since it is larger than the sum of its proper divisors (119447881).

12303121031 is a wasteful number, since it uses less digits than its factorization.

12303121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119447880.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12303121031 its reverse (13012130321), we get a palindrome (25315251352).

The spelling of 12303121031 in words is "twelve billion, three hundred three million, one hundred twenty-one thousand, thirty-one".