12452100042 has 32 divisors (see below), whose sum is σ = 25993963008. Its totient is φ = 3969169776.

The previous prime is 12452099969. The next prime is 12452100079. The reversal of 12452100042 is 24000125421.

It is a junction number, because it is equal to n+sod(n) for n = 12452099991 and 12452100018.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625413 + ... + 645015.

It is an arithmetic number, because the mean of its divisors is an integer number (812311344).

Almost surely, 2^12452100042 is an apocalyptic number.

12452100042 is an abundant number, since it is smaller than the sum of its proper divisors (13541862966).

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

12452100042 is a wasteful number, since it uses less digits than its factorization.

12452100042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24234.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 12452100042 its reverse (24000125421), we get a palindrome (36452225463).

The spelling of 12452100042 in words is "twelve billion, four hundred fifty-two million, one hundred thousand, forty-two".