12354403512 has 64 divisors (see below), whose sum is σ = 33738883200. Its totient is φ = 3738752640.

The previous prime is 12354403507. The next prime is 12354403553. The reversal of 12354403512 is 21530445321.

It is a super-2 number, since 2×12354403512² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12354403512.

It is a congruent number.

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, 168939 + ... + 230757.

It is an arithmetic number, because the mean of its divisors is an integer number (527170050).

Almost surely, 2^12354403512 is an apocalyptic number.

12354403512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12354403512 is an abundant number, since it is smaller than the sum of its proper divisors (21384479688).

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

12354403512 is a wasteful number, since it uses less digits than its factorization.

12354403512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62596 (or 62592 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 12354403512 its reverse (21530445321), we get a palindrome (33884848833).

The spelling of 12354403512 in words is "twelve billion, three hundred fifty-four million, four hundred three thousand, five hundred twelve".