21121140015303 has 8 divisors (see below), whose sum is σ = 28161548329728. Its totient is φ = 14080745855544.

The previous prime is 21121140015263. The next prime is 21121140015329. The reversal of 21121140015303 is 30351004112112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21121140015303 - 2⁸ = 21121140015047 is a prime.

It is a super-2 number, since 2×21121140015303² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121140015103) 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 7 ways as a sum of consecutive naturals, for example, 652050 + ... + 6532032.

It is an arithmetic number, because the mean of its divisors is an integer number (3520193541216).

Almost surely, 2^{21121140015303} is an apocalyptic number.

21121140015303 is a deficient number, since it is larger than the sum of its proper divisors (7040408314425).

21121140015303 is a wasteful number, since it uses less digits than its factorization.

21121140015303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077333.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 21121140015303 its reverse (30351004112112), we get a palindrome (51472144127415).

The spelling of 21121140015303 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred forty million, fifteen thousand, three hundred three".