121134404431121 has 4 divisors (see below), whose sum is σ = 127509899401200. Its totient is φ = 114758909461044.

The previous prime is 121134404431087. The next prime is 121134404431123.

121134404431121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121134404431121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121134404431123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3187747485011 + ... + 3187747485048.

It is an arithmetic number, because the mean of its divisors is an integer number (31877474850300).

Almost surely, 2^{121134404431121} is an apocalyptic number.

It is an amenable number.

121134404431121 is a deficient number, since it is larger than the sum of its proper divisors (6375494970079).

121134404431121 is an equidigital number, since it uses as much as digits as its factorization.

121134404431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375494970078.

The product of its (nonzero) digits is 9216, while the sum is 32.

It can be divided in two parts, 12113440 and 4431121, that added together give a palindrome (16544561).

The spelling of 121134404431121 in words is "one hundred twenty-one trillion, one hundred thirty-four billion, four hundred four million, four hundred thirty-one thousand, one hundred twenty-one".