21121123100302 has 8 divisors (see below), whose sum is σ = 31723870650912. Its totient is φ = 10546499550000.

The previous prime is 21121123100293. The next prime is 21121123100327. The reversal of 21121123100302 is 20300132112112.

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

It is a super-2 number, since 2×21121123100302² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21121123100302.

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, 7030998199 + ... + 7031001202.

It is an arithmetic number, because the mean of its divisors is an integer number (3965483831364).

Almost surely, 2^{21121123100302} is an apocalyptic number.

21121123100302 is a deficient number, since it is larger than the sum of its proper divisors (10602747550610).

21121123100302 is a wasteful number, since it uses less digits than its factorization.

21121123100302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062000154.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21121123100302 its reverse (20300132112112), we get a palindrome (41421255212414).

The spelling of 21121123100302 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred thousand, three hundred two".