423307733081 has 4 divisors (see below), whose sum is σ = 441712417152. Its totient is φ = 404903049012.

The previous prime is 423307733077. The next prime is 423307733129. The reversal of 423307733081 is 180337703324.

It is a happy number.

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 423307733081 - 2² = 423307733077 is a prime.

It is a super-2 number, since 2×423307733081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (423307733021) 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 in 3 ways as a sum of consecutive naturals, for example, 9202342001 + ... + 9202342046.

It is an arithmetic number, because the mean of its divisors is an integer number (110428104288).

Almost surely, 2^423307733081 is an apocalyptic number.

It is an amenable number.

423307733081 is a deficient number, since it is larger than the sum of its proper divisors (18404684071).

423307733081 is a wasteful number, since it uses less digits than its factorization.

423307733081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18404684070.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 423307733081 in words is "four hundred twenty-three billion, three hundred seven million, seven hundred thirty-three thousand, eighty-one".