20112423983 has 2 divisors, whose sum is σ = 20112423984. Its totient is φ = 20112423982.

The previous prime is 20112423979. The next prime is 20112424051. The reversal of 20112423983 is 38932421102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112423983 - 2² = 20112423979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112423083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056211991 + 10056211992.

It is an arithmetic number, because the mean of its divisors is an integer number (10056211992).

Almost surely, 2^20112423983 is an apocalyptic number.

20112423983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112423983 is an equidigital number, since it uses as much as digits as its factorization.

20112423983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 20112423983 in words is "twenty billion, one hundred twelve million, four hundred twenty-three thousand, nine hundred eighty-three".