20112120983 has 2 divisors, whose sum is σ = 20112120984. Its totient is φ = 20112120982.

The previous prime is 20112120979. The next prime is 20112121019. The reversal of 20112120983 is 38902121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112120983 - 2² = 20112120979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112120913) 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, 10056060491 + 10056060492.

It is an arithmetic number, because the mean of its divisors is an integer number (10056060492).

Almost surely, 2^20112120983 is an apocalyptic number.

20112120983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112120983 is an equidigital number, since it uses as much as digits as its factorization.

20112120983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 20112120983 in words is "twenty billion, one hundred twelve million, one hundred twenty thousand, nine hundred eighty-three".