12355023042 has 32 divisors (see below), whose sum is σ = 27671808000. Its totient is φ = 4085910864.

The previous prime is 12355023029. The next prime is 12355023047. The reversal of 12355023042 is 24032055321.

It is a happy number.

12355023042 is a `hidden beast` number, since 1 + 2 + 355 + 0 + 2 + 304 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12355022997 and 12355023015.

It is not an unprimeable number, because it can be changed into a prime (12355023047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893917 + ... + 907632.

It is an arithmetic number, because the mean of its divisors is an integer number (864744000).

Almost surely, 2^12355023042 is an apocalyptic number.

12355023042 is an abundant number, since it is smaller than the sum of its proper divisors (15316784958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12355023042 is a wasteful number, since it uses less digits than its factorization.

12355023042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801687 (or 1801681 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 12355023042 its reverse (24032055321), we get a palindrome (36387078363).

The spelling of 12355023042 in words is "twelve billion, three hundred fifty-five million, twenty-three thousand, forty-two".