4223420030981 has 2 divisors, whose sum is σ = 4223420030982. Its totient is φ = 4223420030980.

The previous prime is 4223420030927. The next prime is 4223420031037. The reversal of 4223420030981 is 1890300243224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4181902300900 + 41517730081 = 2044970^2 + 203759^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223420030981 - 2³⁴ = 4206240161797 is a prime.

It is a super-2 number, since 2×4223420030981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223420030911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111710015490 + 2111710015491.

It is an arithmetic number, because the mean of its divisors is an integer number (2111710015491).

Almost surely, 2^{4223420030981} is an apocalyptic number.

It is an amenable number.

4223420030981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223420030981 is an equidigital number, since it uses as much as digits as its factorization.

4223420030981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 4223420030981 in words is "four trillion, two hundred twenty-three billion, four hundred twenty million, thirty thousand, nine hundred eighty-one".