12403110042 has 64 divisors (see below), whose sum is σ = 28791947520. Its totient is φ = 3950337600.

The previous prime is 12403110023. The next prime is 12403110077. The reversal of 12403110042 is 24001130421.

It is a super-2 number, since 2×12403110042² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12403109997 and 12403110024.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1263192 + ... + 1272972.

It is an arithmetic number, because the mean of its divisors is an integer number (449874180).

Almost surely, 2^12403110042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12403110042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14395973760).

12403110042 is an abundant number, since it is smaller than the sum of its proper divisors (16388837478).

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

12403110042 is a wasteful number, since it uses less digits than its factorization.

12403110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10836 (or 10830 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12403110042 its reverse (24001130421), we get a palindrome (36404240463).

The spelling of 12403110042 in words is "twelve billion, four hundred three million, one hundred ten thousand, forty-two".