12454212342 has 128 divisors (see below), whose sum is σ = 32053916160. Its totient is φ = 3165603840.

The previous prime is 12454212341. The next prime is 12454212413. The reversal of 12454212342 is 24321245421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454212341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 408273 + ... + 437715.

It is an arithmetic number, because the mean of its divisors is an integer number (250421220).

Almost surely, 2^12454212342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12454212342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16026958080).

12454212342 is an abundant number, since it is smaller than the sum of its proper divisors (19599703818).

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

12454212342 is a wasteful number, since it uses less digits than its factorization.

12454212342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29518.

The product of its digits is 15360, while the sum is 30.

Adding to 12454212342 its reverse (24321245421), we get a palindrome (36775457763).

The spelling of 12454212342 in words is "twelve billion, four hundred fifty-four million, two hundred twelve thousand, three hundred forty-two".