423898472281 has 2 divisors, whose sum is σ = 423898472282. Its totient is φ = 423898472280.

The previous prime is 423898472269. The next prime is 423898472311. The reversal of 423898472281 is 182274898324.

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., 418816065600 + 5082406681 = 647160^2 + 71291^2 .

It is a cyclic number.

It is not a de Polignac number, because 423898472281 - 2²¹ = 423896375129 is a prime.

It is a super-2 number, since 2×423898472281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423898472201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211949236140 + 211949236141.

It is an arithmetic number, because the mean of its divisors is an integer number (211949236141).

Almost surely, 2^423898472281 is an apocalyptic number.

It is an amenable number.

423898472281 is a deficient number, since it is larger than the sum of its proper divisors (1).

423898472281 is an equidigital number, since it uses as much as digits as its factorization.

423898472281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12386304, while the sum is 58.

The spelling of 423898472281 in words is "four hundred twenty-three billion, eight hundred ninety-eight million, four hundred seventy-two thousand, two hundred eighty-one".