121232141111 has 8 divisors (see below), whose sum is σ = 130865280480. Its totient is φ = 111962516512.

The previous prime is 121232141087. The next prime is 121232141113. The reversal of 121232141111 is 111141232121.

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 a de Polignac number, because none of the positive numbers 2^k-121232141111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232141113) 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, 90878000 + ... + 90879333.

It is an arithmetic number, because the mean of its divisors is an integer number (16358160060).

Almost surely, 2^121232141111 is an apocalyptic number.

121232141111 is a deficient number, since it is larger than the sum of its proper divisors (9633139369).

121232141111 is a wasteful number, since it uses less digits than its factorization.

121232141111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181757385.

The product of its digits is 96, while the sum is 20.

Adding to 121232141111 its reverse (111141232121), we get a palindrome (232373373232).

It can be divided in two parts, 121 and 232141111, that added together give a palindrome (232141232).

The spelling of 121232141111 in words is "one hundred twenty-one billion, two hundred thirty-two million, one hundred forty-one thousand, one hundred eleven".