12012323013131 has 4 divisors (see below), whose sum is σ = 13728369157872. Its totient is φ = 10296276868392.

The previous prime is 12012323013109. The next prime is 12012323013199. The reversal of 12012323013131 is 13131032321021.

12012323013131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12012323013131 - 2¹⁴ = 12012322996747 is a prime.

It is a super-2 number, since 2×12012323013131² (a number of 27 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 = 12012323013097 and 12012323013106.

It is not an unprimeable number, because it can be changed into a prime (12012323015131) 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, 858023072360 + ... + 858023072373.

It is an arithmetic number, because the mean of its divisors is an integer number (3432092289468).

Almost surely, 2^{12012323013131} is an apocalyptic number.

12012323013131 is a deficient number, since it is larger than the sum of its proper divisors (1716046144741).

12012323013131 is an equidigital number, since it uses as much as digits as its factorization.

12012323013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716046144740.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12012323013131 its reverse (13131032321021), we get a palindrome (25143355334152).

The spelling of 12012323013131 in words is "twelve trillion, twelve billion, three hundred twenty-three million, thirteen thousand, one hundred thirty-one".