423351451093 has 2 divisors, whose sum is σ = 423351451094. Its totient is φ = 423351451092.

The previous prime is 423351451091. The next prime is 423351451121. The reversal of 423351451093 is 390154153324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263397847729 + 159953603364 = 513223^2 + 399942^2 .

It is a cyclic number.

It is not a de Polignac number, because 423351451093 - 2¹ = 423351451091 is a prime.

It is a super-2 number, since 2×423351451093² (a number of 24 digits) contains 22 as substring.

Together with 423351451091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423351451091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211675725546 + 211675725547.

It is an arithmetic number, because the mean of its divisors is an integer number (211675725547).

Almost surely, 2^423351451093 is an apocalyptic number.

It is an amenable number.

423351451093 is a deficient number, since it is larger than the sum of its proper divisors (1).

423351451093 is an equidigital number, since it uses as much as digits as its factorization.

423351451093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 423351451093 in words is "four hundred twenty-three billion, three hundred fifty-one million, four hundred fifty-one thousand, ninety-three".