21130041454 has 8 divisors (see below), whose sum is σ = 31700908008. Its totient is φ = 10563072120.

The previous prime is 21130041389. The next prime is 21130041467. The reversal of 21130041454 is 45414003112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960712 + ... + 982459.

It is an arithmetic number, because the mean of its divisors is an integer number (3962613501).

Almost surely, 2^21130041454 is an apocalyptic number.

21130041454 is a deficient number, since it is larger than the sum of its proper divisors (10570866554).

21130041454 is a wasteful number, since it uses less digits than its factorization.

21130041454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948610.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 21130041454 its reverse (45414003112), we get a palindrome (66544044566).

The spelling of 21130041454 in words is "twenty-one billion, one hundred thirty million, forty-one thousand, four hundred fifty-four".