423123387361 has 4 divisors (see below), whose sum is σ = 432126012672. Its totient is φ = 414120762052.

The previous prime is 423123387347. The next prime is 423123387389. The reversal of 423123387361 is 163783321324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423123387361 - 2⁵ = 423123387329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423123387311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4501312585 + ... + 4501312678.

It is an arithmetic number, because the mean of its divisors is an integer number (108031503168).

Almost surely, 2^423123387361 is an apocalyptic number.

It is an amenable number.

423123387361 is a deficient number, since it is larger than the sum of its proper divisors (9002625311).

423123387361 is an equidigital number, since it uses as much as digits as its factorization.

423123387361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9002625310.

The product of its digits is 435456, while the sum is 43.

The spelling of 423123387361 in words is "four hundred twenty-three billion, one hundred twenty-three million, three hundred eighty-seven thousand, three hundred sixty-one".