12103020131 has 2 divisors, whose sum is σ = 12103020132. Its totient is φ = 12103020130.

The previous prime is 12103020089. The next prime is 12103020143. The reversal of 12103020131 is 13102030121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12103020131 - 2⁶ = 12103020067 is a prime.

It is a super-2 number, since 2×12103020131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12103020191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051510065 + 6051510066.

It is an arithmetic number, because the mean of its divisors is an integer number (6051510066).

Almost surely, 2^12103020131 is an apocalyptic number.

12103020131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103020131 is an equidigital number, since it uses as much as digits as its factorization.

12103020131 is an evil number, because the sum of its binary digits is even.

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

Adding to 12103020131 its reverse (13102030121), we get a palindrome (25205050252).

The spelling of 12103020131 in words is "twelve billion, one hundred three million, twenty thousand, one hundred thirty-one".