21141317001400 has 24 divisors (see below), whose sum is σ = 49153562028720. Its totient is φ = 8456526800480.

The previous prime is 21141317001359. The next prime is 21141317001439. The reversal of 21141317001400 is 410071314112.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52853292304 + ... + 52853292703.

It is an arithmetic number, because the mean of its divisors is an integer number (2048065084530).

Almost surely, 2^{21141317001400} is an apocalyptic number.

21141317001400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21141317001400 is an abundant number, since it is smaller than the sum of its proper divisors (28012245027320).

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

21141317001400 is a wasteful number, since it uses less digits than its factorization.

21141317001400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105706585023 (or 105706585014 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 21141317001400 its reverse (410071314112), we get a palindrome (21551388315512).

The spelling of 21141317001400 in words is "twenty-one trillion, one hundred forty-one billion, three hundred seventeen million, one thousand, four hundred".