2121313030110 has 48 divisors (see below), whose sum is σ = 5519108409984. Its totient is φ = 565304548416.

The previous prime is 2121313030093. The next prime is 2121313030117. The reversal of 2121313030110 is 110303131212.

2121313030110 is a `hidden beast` number, since 21 + 21 + 313 + 0 + 301 + 10 = 666.

It is a super-2 number, since 2×2121313030110² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121313030117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7759182 + ... + 8027921.

It is an arithmetic number, because the mean of its divisors is an integer number (114981425208).

Almost surely, 2^{2121313030110} is an apocalyptic number.

2121313030110 is an abundant number, since it is smaller than the sum of its proper divisors (3397795379874).

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

2121313030110 is a wasteful number, since it uses less digits than its factorization.

2121313030110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15788609 (or 15788606 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 2121313030110 its reverse (110303131212), we get a palindrome (2231616161322).

The spelling of 2121313030110 in words is "two trillion, one hundred twenty-one billion, three hundred thirteen million, thirty thousand, one hundred ten".