20120111414243 has 4 divisors (see below), whose sum is σ = 20120179184088. Its totient is φ = 20120043644400.

The previous prime is 20120111414191. The next prime is 20120111414281. The reversal of 20120111414243 is 34241411102102.

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-20120111414243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120111414443) 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, 33437621 + ... + 34034022.

It is an arithmetic number, because the mean of its divisors is an integer number (5030044796022).

Almost surely, 2^{20120111414243} is an apocalyptic number.

20120111414243 is a deficient number, since it is larger than the sum of its proper divisors (67769845).

20120111414243 is an equidigital number, since it uses as much as digits as its factorization.

20120111414243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67769844.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 20120111414243 its reverse (34241411102102), we get a palindrome (54361522516345).

The spelling of 20120111414243 in words is "twenty trillion, one hundred twenty billion, one hundred eleven million, four hundred fourteen thousand, two hundred forty-three".