121331200011 has 80 divisors (see below), whose sum is σ = 194295644928. Its totient is φ = 67316356800.

The previous prime is 121331199937. The next prime is 121331200033. The reversal of 121331200011 is 110002133121.

It is a happy number.

It is not a de Polignac number, because 121331200011 - 2⁹ = 121331199499 is a prime.

It is a super-3 number, since 3×121331200011³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (121331200061) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 34262901 + ... + 34266441.

Almost surely, 2^121331200011 is an apocalyptic number.

121331200011 is a deficient number, since it is larger than the sum of its proper divisors (72964444917).

121331200011 is an frugal number, since it uses more digits than its factorization.

121331200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710 (or 3689 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121331200011 its reverse (110002133121), we get a palindrome (231333333132).

The spelling of 121331200011 in words is "one hundred twenty-one billion, three hundred thirty-one million, two hundred thousand, eleven".