12121103311 has 8 divisors (see below), whose sum is σ = 12402178560. Its totient is φ = 11842549272.

The previous prime is 12121103299. The next prime is 12121103317. The reversal of 12121103311 is 11330112121.

It is a happy number.

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 12121103311 - 2⁵ = 12121103279 is a prime.

It is a super-2 number, since 2×12121103311² (a number of 21 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 (12121103317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620575 + ... + 639808.

It is an arithmetic number, because the mean of its divisors is an integer number (1550272320).

Almost surely, 2^12121103311 is an apocalyptic number.

12121103311 is a deficient number, since it is larger than the sum of its proper divisors (281075249).

12121103311 is a wasteful number, since it uses less digits than its factorization.

12121103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260605.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12121103311 its reverse (11330112121), we get a palindrome (23451215432).

The spelling of 12121103311 in words is "twelve billion, one hundred twenty-one million, one hundred three thousand, three hundred eleven".