42523112345 has 16 divisors (see below), whose sum is σ = 58353913728. Its totient is φ = 29140454400.

The previous prime is 42523112339. The next prime is 42523112347. The reversal of 42523112345 is 54321132524.

It is not a de Polignac number, because 42523112345 - 2¹² = 42523108249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42523112347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323399 + ... + 435468.

It is an arithmetic number, because the mean of its divisors is an integer number (3647119608).

Almost surely, 2^42523112345 is an apocalyptic number.

It is an amenable number.

42523112345 is a deficient number, since it is larger than the sum of its proper divisors (15830801383).

42523112345 is a wasteful number, since it uses less digits than its factorization.

42523112345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760480.

The product of its digits is 28800, while the sum is 32.

Adding to 42523112345 its reverse (54321132524), we get a palindrome (96844244869).

The spelling of 42523112345 in words is "forty-two billion, five hundred twenty-three million, one hundred twelve thousand, three hundred forty-five".