21014044041340 has 72 divisors (see below), whose sum is σ = 51558475419360. Its totient is φ = 7173352948608.

The previous prime is 21014044041329. The next prime is 21014044041349. The reversal of 21014044041340 is 4314044041012.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 21014044041299 and 21014044041308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014044041349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46594144 + ... + 47042983.

It is an arithmetic number, because the mean of its divisors is an integer number (716089936380).

Almost surely, 2^{21014044041340} is an apocalyptic number.

21014044041340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21014044041340 is an abundant number, since it is smaller than the sum of its proper divisors (30544431378020).

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

21014044041340 is a wasteful number, since it uses less digits than its factorization.

21014044041340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93637379 (or 93637370 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21014044041340 its reverse (4314044041012), we get a palindrome (25328088082352).

The spelling of 21014044041340 in words is "twenty-one trillion, fourteen billion, forty-four million, forty-one thousand, three hundred forty".