423203713158539 has 2 divisors, whose sum is σ = 423203713158540. Its totient is φ = 423203713158538.

The previous prime is 423203713158521. The next prime is 423203713158593. The reversal of 423203713158539 is 935851317302324.

Together with next prime (423203713158593) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423203713158539 - 2³² = 423199418191243 is a prime.

It is a super-2 number, since 2×423203713158539² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423203713155539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211601856579269 + 211601856579270.

It is an arithmetic number, because the mean of its divisors is an integer number (211601856579270).

Almost surely, 2^{423203713158539} is an apocalyptic number.

423203713158539 is a deficient number, since it is larger than the sum of its proper divisors (1).

423203713158539 is an equidigital number, since it uses as much as digits as its factorization.

423203713158539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 423203713158539 in words is "four hundred twenty-three trillion, two hundred three billion, seven hundred thirteen million, one hundred fifty-eight thousand, five hundred thirty-nine".