21141031100440 has 32 divisors (see below), whose sum is σ = 47576682236160. Its totient is φ = 8454748038400.

The previous prime is 21141031100419. The next prime is 21141031100459. The reversal of 21141031100440 is 4400113014112.

It is a congruent number.

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, 51806776 + ... + 52213255.

It is an arithmetic number, because the mean of its divisors is an integer number (1486771319880).

Almost surely, 2^{21141031100440} is an apocalyptic number.

21141031100440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21141031100440 is an abundant number, since it is smaller than the sum of its proper divisors (26435651135720).

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

21141031100440 is a wasteful number, since it uses less digits than its factorization.

21141031100440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104025123 (or 104025119 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21141031100440 its reverse (4400113014112), we get a palindrome (25541144114552).

The spelling of 21141031100440 in words is "twenty-one trillion, one hundred forty-one billion, thirty-one million, one hundred thousand, four hundred forty".