42103787723 has 2 divisors, whose sum is σ = 42103787724. Its totient is φ = 42103787722.

The previous prime is 42103787651. The next prime is 42103787797. The reversal of 42103787723 is 32778730124.

42103787723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42103787723 - 2²⁴ = 42087010507 is a prime.

It is not a weakly prime, because it can be changed into another prime (42103787023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051893861 + 21051893862.

It is an arithmetic number, because the mean of its divisors is an integer number (21051893862).

Almost surely, 2^42103787723 is an apocalyptic number.

42103787723 is a deficient number, since it is larger than the sum of its proper divisors (1).

42103787723 is an equidigital number, since it uses as much as digits as its factorization.

42103787723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 42103787723 in words is "forty-two billion, one hundred three million, seven hundred eighty-seven thousand, seven hundred twenty-three".