423441433357 has 2 divisors, whose sum is σ = 423441433358. Its totient is φ = 423441433356.

The previous prime is 423441433291. The next prime is 423441433379. The reversal of 423441433357 is 753334144324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261208899396 + 162232533961 = 511086^2 + 402781^2 .

It is a cyclic number.

It is not a de Polignac number, because 423441433357 - 2³¹ = 421293949709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423441433757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211720716678 + 211720716679.

It is an arithmetic number, because the mean of its divisors is an integer number (211720716679).

Almost surely, 2^423441433357 is an apocalyptic number.

It is an amenable number.

423441433357 is a deficient number, since it is larger than the sum of its proper divisors (1).

423441433357 is an equidigital number, since it uses as much as digits as its factorization.

423441433357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 43.

The spelling of 423441433357 in words is "four hundred twenty-three billion, four hundred forty-one million, four hundred thirty-three thousand, three hundred fifty-seven".