21404301120140 has 24 divisors (see below), whose sum is σ = 44949230499600. Its totient is φ = 8561682705728.

The previous prime is 21404301120133. The next prime is 21404301120151. The reversal of 21404301120140 is 4102110340412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539559 + ... + 7018401.

It is an arithmetic number, because the mean of its divisors is an integer number (1872884604150).

Almost surely, 2^{21404301120140} is an apocalyptic number.

21404301120140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21404301120140 is an abundant number, since it is smaller than the sum of its proper divisors (23544929379460).

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

21404301120140 is a wasteful number, since it uses less digits than its factorization.

21404301120140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717801 (or 4717799 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21404301120140 its reverse (4102110340412), we get a palindrome (25506411460552).

The spelling of 21404301120140 in words is "twenty-one trillion, four hundred four billion, three hundred one million, one hundred twenty thousand, one hundred forty".