12420330134131 has 4 divisors (see below), whose sum is σ = 12425613135264. Its totient is φ = 12415047133000.

The previous prime is 12420330134117. The next prime is 12420330134137. The reversal of 12420330134131 is 13143103302421.

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 12420330134131 - 2²³ = 12420321745523 is a prime.

It is a super-2 number, since 2×12420330134131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12420330134131.

It is not an unprimeable number, because it can be changed into a prime (12420330134137) 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, 2641497040 + ... + 2641501741.

It is an arithmetic number, because the mean of its divisors is an integer number (3106403283816).

Almost surely, 2^{12420330134131} is an apocalyptic number.

12420330134131 is a deficient number, since it is larger than the sum of its proper divisors (5283001133).

12420330134131 is an equidigital number, since it uses as much as digits as its factorization.

12420330134131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283001132.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 12420330134131 its reverse (13143103302421), we get a palindrome (25563433436552).

The spelling of 12420330134131 in words is "twelve trillion, four hundred twenty billion, three hundred thirty million, one hundred thirty-four thousand, one hundred thirty-one".