21514231303320 has 64 divisors (see below), whose sum is σ = 73763078757120. Its totient is φ = 4917538583424.

The previous prime is 21514231303273. The next prime is 21514231303321. The reversal of 21514231303320 is 2330313241512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514231303321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12806089222 + ... + 12806090901.

It is an arithmetic number, because the mean of its divisors is an integer number (1152548105580).

Almost surely, 2^{21514231303320} is an apocalyptic number.

21514231303320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21514231303320 is an abundant number, since it is smaller than the sum of its proper divisors (52248847453800).

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

21514231303320 is a wasteful number, since it uses less digits than its factorization.

21514231303320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25612180144 (or 25612180140 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 21514231303320 its reverse (2330313241512), we get a palindrome (23844544544832).

The spelling of 21514231303320 in words is "twenty-one trillion, five hundred fourteen billion, two hundred thirty-one million, three hundred three thousand, three hundred twenty".