423341311181 has 2 divisors, whose sum is σ = 423341311182. Its totient is φ = 423341311180.

The previous prime is 423341311171. The next prime is 423341311243. The reversal of 423341311181 is 181113143324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413566034281 + 9775276900 = 643091^2 + 98870^2 .

It is a cyclic number.

It is not a de Polignac number, because 423341311181 - 2⁶ = 423341311117 is a prime.

It is a super-2 number, since 2×423341311181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423341311111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211670655590 + 211670655591.

It is an arithmetic number, because the mean of its divisors is an integer number (211670655591).

Almost surely, 2^423341311181 is an apocalyptic number.

It is an amenable number.

423341311181 is a deficient number, since it is larger than the sum of its proper divisors (1).

423341311181 is an equidigital number, since it uses as much as digits as its factorization.

423341311181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The spelling of 423341311181 in words is "four hundred twenty-three billion, three hundred forty-one million, three hundred eleven thousand, one hundred eighty-one".