12120230112131 has 4 divisors (see below), whose sum is σ = 12147838837200. Its totient is φ = 12092621387064.

The previous prime is 12120230112103. The next prime is 12120230112161. The reversal of 12120230112131 is 13121103202121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120230112131 is a prime.

It is a super-2 number, since 2×12120230112131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120230112161) 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, 13804361876 + ... + 13804362753.

It is an arithmetic number, because the mean of its divisors is an integer number (3036959709300).

Almost surely, 2^{12120230112131} is an apocalyptic number.

12120230112131 is a deficient number, since it is larger than the sum of its proper divisors (27608725069).

12120230112131 is an equidigital number, since it uses as much as digits as its factorization.

12120230112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27608725068.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12120230112131 its reverse (13121103202121), we get a palindrome (25241333314252).

The spelling of 12120230112131 in words is "twelve trillion, one hundred twenty billion, two hundred thirty million, one hundred twelve thousand, one hundred thirty-one".