423502620013 has 12 divisors (see below), whose sum is σ = 465530917180. Its totient is φ = 384979193280.

The previous prime is 423502619999. The next prime is 423502620043. The reversal of 423502620013 is 310026205324.

It can be written as a sum of positive squares in 2 ways, for example, as 143870007204 + 279632612809 = 379302^2 + 528803^2 .

It is not a de Polignac number, because 423502620013 - 2²⁵ = 423469065581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423502620043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2102131 + ... + 2294767.

Almost surely, 2^423502620013 is an apocalyptic number.

It is an amenable number.

423502620013 is a deficient number, since it is larger than the sum of its proper divisors (42028297167).

423502620013 is a wasteful number, since it uses less digits than its factorization.

423502620013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210828 (or 210817 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 423502620013 its reverse (310026205324), we get a palindrome (733528825337).

The spelling of 423502620013 in words is "four hundred twenty-three billion, five hundred two million, six hundred twenty thousand, thirteen".