12420131311 has 8 divisors (see below), whose sum is σ = 14496445440. Its totient is φ = 10419319608.

The previous prime is 12420131287. The next prime is 12420131329. The reversal of 12420131311 is 11313102421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12420131311 - 2²¹ = 12418034159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420131351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18875251 + ... + 18875908.

It is an arithmetic number, because the mean of its divisors is an integer number (1812055680).

Almost surely, 2^12420131311 is an apocalyptic number.

12420131311 is a deficient number, since it is larger than the sum of its proper divisors (2076314129).

12420131311 is an equidigital number, since it uses as much as digits as its factorization.

12420131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37751213.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12420131311 its reverse (11313102421), we get a palindrome (23733233732).

The spelling of 12420131311 in words is "twelve billion, four hundred twenty million, one hundred thirty-one thousand, three hundred eleven".