20120414112391 has 2 divisors, whose sum is σ = 20120414112392. Its totient is φ = 20120414112390.

The previous prime is 20120414112353. The next prime is 20120414112437. The reversal of 20120414112391 is 19321141402102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120414112391 - 2³¹ = 20118266628743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120414112341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060207056195 + 10060207056196.

It is an arithmetic number, because the mean of its divisors is an integer number (10060207056196).

Almost surely, 2^{20120414112391} is an apocalyptic number.

20120414112391 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120414112391 is an equidigital number, since it uses as much as digits as its factorization.

20120414112391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 20120414112391 its reverse (19321141402102), we get a palindrome (39441555514493).

The spelling of 20120414112391 in words is "twenty trillion, one hundred twenty billion, four hundred fourteen million, one hundred twelve thousand, three hundred ninety-one".