12320030131 has 4 divisors (see below), whose sum is σ = 12391244352. Its totient is φ = 12248815912.

The previous prime is 12320030117. The next prime is 12320030143. The reversal of 12320030131 is 13103002321.

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 12320030131 - 2⁹ = 12320029619 is a prime.

It is a super-2 number, since 2×12320030131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320037131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35606851 + ... + 35607196.

It is an arithmetic number, because the mean of its divisors is an integer number (3097811088).

Almost surely, 2^12320030131 is an apocalyptic number.

12320030131 is a deficient number, since it is larger than the sum of its proper divisors (71214221).

12320030131 is an equidigital number, since it uses as much as digits as its factorization.

12320030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71214220.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12320030131 its reverse (13103002321), we get a palindrome (25423032452).

The spelling of 12320030131 in words is "twelve billion, three hundred twenty million, thirty thousand, one hundred thirty-one".