121103310213 has 6 divisors (see below), whose sum is σ = 174927003654. Its totient is φ = 80735540136.

The previous prime is 121103310173. The next prime is 121103310221. The reversal of 121103310213 is 312013301121.

121103310213 is a `hidden beast` number, since 12 + 110 + 331 + 0 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113206677444 + 7896632769 = 336462^2 + 88863^2 .

It is not a de Polignac number, because 121103310213 - 2²¹ = 121101213061 is a prime.

It is a super-2 number, since 2×121103310213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103310233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6727961670 + ... + 6727961687.

It is an arithmetic number, because the mean of its divisors is an integer number (29154500609).

Almost surely, 2^121103310213 is an apocalyptic number.

It is an amenable number.

121103310213 is a deficient number, since it is larger than the sum of its proper divisors (53823693441).

121103310213 is a wasteful number, since it uses less digits than its factorization.

121103310213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455923363 (or 13455923360 counting only the distinct ones).

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

Adding to 121103310213 its reverse (312013301121), we get a palindrome (433116611334).

The spelling of 121103310213 in words is "one hundred twenty-one billion, one hundred three million, three hundred ten thousand, two hundred thirteen".