21114010310420 has 12 divisors (see below), whose sum is σ = 44339421651924. Its totient is φ = 8445604124160.

The previous prime is 21114010310299. The next prime is 21114010310473. The reversal of 21114010310420 is 2401301041112.

It can be written as a sum of positive squares in 2 ways, for example, as 4169821176196 + 16944189134224 = 2042014^2 + 4116332^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1055700515521 = 21114010310420 / (2 + 1 + 1 + 1 + 4 + 0 + 1 + 0 + 3 + 1 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 21114010310392 and 21114010310401.

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, 527850257741 + ... + 527850257780.

It is an arithmetic number, because the mean of its divisors is an integer number (3694951804327).

Almost surely, 2^{21114010310420} is an apocalyptic number.

21114010310420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21114010310420 is an abundant number, since it is smaller than the sum of its proper divisors (23225411341504).

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

21114010310420 is a wasteful number, since it uses less digits than its factorization.

21114010310420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055700515530 (or 1055700515528 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21114010310420 its reverse (2401301041112), we get a palindrome (23515311351532).

The spelling of 21114010310420 in words is "twenty-one trillion, one hundred fourteen billion, ten million, three hundred ten thousand, four hundred twenty".