12354421000 has 64 divisors (see below), whose sum is σ = 29195814960. Its totient is φ = 4892800000.

The previous prime is 12354420983. The next prime is 12354421019. The reversal of 12354421000 is 12445321.

It can be written as a sum of positive squares in 8 ways, for example, as 1789459204 + 10564961796 = 42302^2 + 102786^2 .

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, 39840 + ... + 162160.

Almost surely, 2^12354421000 is an apocalyptic number.

12354421000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12354421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14597907480).

12354421000 is an abundant number, since it is smaller than the sum of its proper divisors (16841393960).

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

12354421000 is a wasteful number, since it uses less digits than its factorization.

12354421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122443 (or 122429 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 12354421000 its reverse (12445321), we get a palindrome (12366866321).

The spelling of 12354421000 in words is "twelve billion, three hundred fifty-four million, four hundred twenty-one thousand".