20120012123143 has 2 divisors, whose sum is σ = 20120012123144. Its totient is φ = 20120012123142.

The previous prime is 20120012122997. The next prime is 20120012123153. The reversal of 20120012123143 is 34132121002102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120012123143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120012123153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060006061571 + 10060006061572.

It is an arithmetic number, because the mean of its divisors is an integer number (10060006061572).

Almost surely, 2^{20120012123143} is an apocalyptic number.

20120012123143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120012123143 is an equidigital number, since it uses as much as digits as its factorization.

20120012123143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20120012123143 its reverse (34132121002102), we get a palindrome (54252133125245).

The spelling of 20120012123143 in words is "twenty trillion, one hundred twenty billion, twelve million, one hundred twenty-three thousand, one hundred forty-three".