21121310102311 has 8 divisors (see below), whose sum is σ = 21123863107200. Its totient is φ = 21118757282040.

The previous prime is 21121310102251. The next prime is 21121310102327. The reversal of 21121310102311 is 11320101312112.

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

It is a cyclic number.

It is not a de Polignac number, because 21121310102311 - 2⁷ = 21121310102183 is a prime.

It is a super-2 number, since 2×21121310102311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121310102111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430855560 + ... + 430904578.

It is an arithmetic number, because the mean of its divisors is an integer number (2640482888400).

Almost surely, 2^{21121310102311} is an apocalyptic number.

21121310102311 is a deficient number, since it is larger than the sum of its proper divisors (2553004889).

21121310102311 is a wasteful number, since it uses less digits than its factorization.

21121310102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92309.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 21121310102311 its reverse (11320101312112), we get a palindrome (32441411414423).

The spelling of 21121310102311 in words is "twenty-one trillion, one hundred twenty-one billion, three hundred ten million, one hundred two thousand, three hundred eleven".