20112464429111 has 2 divisors, whose sum is σ = 20112464429112. Its totient is φ = 20112464429110.

The previous prime is 20112464429081. The next prime is 20112464429201. The reversal of 20112464429111 is 11192446421102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112464429111 - 2⁶ = 20112464429047 is a prime.

It is a super-2 number, since 2×20112464429111² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112464429411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056232214555 + 10056232214556.

It is an arithmetic number, because the mean of its divisors is an integer number (10056232214556).

Almost surely, 2^{20112464429111} is an apocalyptic number.

20112464429111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112464429111 is an equidigital number, since it uses as much as digits as its factorization.

20112464429111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 20112464429111 in words is "twenty trillion, one hundred twelve billion, four hundred sixty-four million, four hundred twenty-nine thousand, one hundred eleven".