121344140411 has 4 divisors (see below), whose sum is σ = 130678305072. Its totient is φ = 112009975752.

The previous prime is 121344140389. The next prime is 121344140447. The reversal of 121344140411 is 114041443121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121344140411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121344140111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4667082311 + ... + 4667082336.

It is an arithmetic number, because the mean of its divisors is an integer number (32669576268).

Almost surely, 2^121344140411 is an apocalyptic number.

121344140411 is a deficient number, since it is larger than the sum of its proper divisors (9334164661).

121344140411 is an equidigital number, since it uses as much as digits as its factorization.

121344140411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9334164660.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 121344140411 its reverse (114041443121), we get a palindrome (235385583532).

The spelling of 121344140411 in words is "one hundred twenty-one billion, three hundred forty-four million, one hundred forty thousand, four hundred eleven".